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Symptoms » Psychiatric symptom » Glossary
 

Glossary for Psychiatric symptom

Medical terms related to Psychiatric symptom or mentioned in this section include:

  • 22q11.2 deletion syndrome: A rare genetic disorder caused by the absence of a small portion of genetic material. A small section of chromosome 22 is missing at a location called q11.2. Chromosome 22 is one of 23 pairs of chromosomes that exist in humans.
  • ACTH Deficiency: A rare endocrine disorder involving a lack of ACTH (adrenocorticotropic hormone) and low levels of cortisol and steroid hormones.
  • ADD: Attention Deficit Disorder (ADD) is a mental and behavioral disorder characterized by behavioral problems such as hyperactivity, inattention, concentration difficulty, and other mental symptoms. The related description Attention Deficit Hyperactivity Disorder (ADHD) may be a more modern description of the disease.

    Misdiagnosis of ADD is a well-known controversy in the sense that cases of hyperactivity in children may be over-diagnosed. There is a tendency for parents to seek and doctors to prescribe the drug Ritalin even in cases where the diagnosis of ADD or ADHD may be incorrect. Alternative diagnoses include normal child behavior (i.e. just an active child), food intolerances, or other behavioral disorders (see misdiagnosis of ADD).

    On the other hand, ADD is under-diagnosed in adults, with a large number of adults having ADD without knowing it; see misdiagnosis of Adult ADD.

  • ADHD-like symptoms: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • ADHD-like symptoms in adults: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • ADHD-like symptoms in children: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Abnormal thinking: Abnormal thinking is any type of thought process that is considered deviant or outside of what is expected, usual, understandable, or typical.
  • Acanthamoeba infection: Infection with a microscopic, free-living ameba that is readily found in the environment - soil, air and water. Most people exposed to the ameba will not become infected but when infections do occur, they tend to affect the eyes, central nervous system or can cause widespread infection throughout the body.
  • Acanthamoeba infection of the central nervous system: Infection by an amoebic organism called Acanthamoeba. Infection usually occurs when the amoeba enters through a break in the skin or through the nose. Infection can be localized or systemic where it can involve the central nervous system and cause potentially fatal meningoencephalitis. Infection of the eye can occur by cleaning contact lenses in contaminated water.
  • Aceruloplasminemia: A rare genetic disorder characterized by a lack of the protein ceruloplasmin in the blood resulting in a buildup of iron in the liver, brain and pancreas. This in turn causes diabetes and degeneration of the neural system causing tremors and walking abnormalities.
  • Acid-Base Imbalance: A disruption to the normal acid-base equilibrium in the body. There are four main groups of disorder involving an acid-base imbalance: respiratory acidosis or alkalosis and metabolic acidosis or alkalosis. Obviously the severity of symptoms is determined by the degree of imbalance.
  • Acne: Pimples and blackheads on the skin
  • Act funny: the most common problem with funny acts is misdiagnosis and hence a good clinical history is of paramount importance. A reliable eye witness account is invaluable
  • Acute Bokhoror: A brain disease caused by an unknown pathogen which is probably from the Picornavirus family of viruses. Mode of transmission is uncertain but genetic susceptibility may be involved. The incubation period appears to be an average of 15 years. The disease can be classified according to rate of progression: acute or subacute, slowly progressive and chronic. Death is common in the acute phase of the infection which can last from four days to four months.
  • Acute Chemical poisoning -- Varnish makers' and painters' Naptha: Varnish makers' and painters' Naptha is an ingredient used in certain pesticides. Exposure to the chemical can cause a range of symptoms depending on the level and route of exposure. Exposure can occur through inhalation, ingestion, the skin or eyes. Acute exposure involves a exposure over a short period of time whereas chronic exposure occurs over a longer period of time.
  • Acute Disseminated Encephalomyelitis: A type of encephalitis that usually follows an acute viral infection and involves an immune attack on myelin tissue which is part of the nervous system. Initial symptoms include fever, headache, vomiting and drowsiness followed by seizures, coma and paralysis. Often results in permanent neurological disorders.
  • Acute Pesticide poisoning -- Triforine: Triforine is an ingredient used in certain herbicides. Exposure to the chemical can cause a range of symptoms depending on the level and route of exposure. Exposure can occur through inhalation, ingestion, the skin or eyes. Acute exposure involves a exposure over a short period of time whereas chronic exposure occurs over a longer period of time.
  • Acute VE: A brain disease caused by an unknown pathogen which is probably from the Picornavirus family of viruses. Mode of transmission is uncertain but genetic susceptibility may be involved. The incubation period appears to be an average of 15 years. The disease can be classified according to rate of progression: acute or subacute, slowly progressive and chronic. Death is common in the acute phase of the infection which can last from four days to four months.
  • Acute Viliuisk Encephalitis: A brain disease caused by an unknown pathogen which is probably from the Picornavirus family of viruses. Mode of transmission is uncertain but genetic susceptibility may be involved. The incubation period appears to be an average of 15 years. The disease can be classified according to rate of progression: acute or subacute, slowly progressive and chronic. Death is common in the acute phase of the infection which can last from four days to four months.
  • Acute Viliuisk Encephalomyelitis: A brain disease caused by an unknown pathogen which is probably from the Picornavirus family of viruses. Mode of transmission is uncertain but genetic susceptibility may be involved. The incubation period appears to be an average of 15 years. The disease can be classified according to rate of progression: acute or subacute, slowly progressive and chronic. Death is common in the acute phase of the infection which can last from four days to four months.
  • Acute Vilyuisk Encephalitis: A brain disease caused by an unknown pathogen which is probably from the Picornavirus family of viruses. Mode of transmission is uncertain but genetic susceptibility may be involved. The incubation period appears to be an average of 15 years. The disease can be classified according to rate of progression: acute or subacute, slowly progressive and chronic. Death is common in the acute phase of the infection which can last from four days to four months.
  • Acute Vilyuisk Encephalomyelitis: A brain disease caused by an unknown pathogen which is probably from the Picornavirus family of viruses. Mode of transmission is uncertain but genetic susceptibility may be involved. The incubation period appears to be an average of 15 years. The disease can be classified according to rate of progression: acute or subacute, slowly progressive and chronic. Death is common in the acute phase of the infection which can last from four days to four months.
  • Acute adhd-like symptoms: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Acute adhd-like symptoms in adults: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Acute adhd-like symptoms in children: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Acute bipolar-like mania symptoms: bipolar disorder like mania conditions
  • Acute bipolar-like symptoms: bipolar disorder like conditions
  • Acute depression-like symptoms: conditions which cause depression like symptoms
  • Acute episodic adhd-like symptoms: ADHD is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms but episodic in nature include
  • Acute episodic bipolar-like symptoms: episodes of bipolar disorder
  • Acute episodic depression-like symptoms: conditions which cause episodic depression like symptoms
  • Acute episodic mania-like symptoms: episodic symptoms of mania
  • Acute fulminant multiple sclerosis: Malignant Multiple Sclerosis, is a particularly aggressive form of the disease. Thankfully very rare, this highly aggressive form is defined by its swift and relentless decline to significant disability or even death, often within a few weeks or months after the onset of the initial attack. It is characterized by widespread and progressive cerebral white matter destruction or by severe pathological involvement of clinically strategic regions such as brainstem, resulting in bulbar paralysis.
  • Acute hyperactivity in adults: maybe to due to various causative agents
  • Acute hyperactivity in the workplace: maybe due to stress or an underlying neurological lesion
  • Acute hypomania-like symptoms: symptoms of hypomania
  • Acute intermittent porphyria: A rare inherited metabolic disorder caused by a disturbed porphyrin metabolism resulting in increased production of porphyrin or its precursors. Symptoms include abdominal pain, photosensitivity and neurological disturbances such as seizures, coma, hallucinations and respiratory paralysis.
  • Acute meningitis: Acute meningitis is an inflammation of the brain that presents in an acute fashion. The inflammation may be the result of infective agents such as bacteria, viruses and fungi as well as non-infective agents such as certain drugs. Acute forms of meningitis can develop in within hours or days whereas chronic meningitis develops over weeks or months.
  • Acute recurring depression-like symptoms: conditions which cause recurring depression like symptoms
  • Acute recurring depression-like symptoms in pregnancy: Acute recurring depression-like symptoms in pregnancy can include a lowered mood, altered sleep pattern, altered appetite and fatigue.
  • Acute seasonal depression-like symptoms: conditions which can causes seasonal depression
  • Addiction symptoms: Symptoms related to addiction (physical or mental addiction)
  • Addington disease: An epidemic disease which resembles polio and was first recorded in South Africa. The range and severity of symptoms experienced is variable and the disease may persist from a week to 3 months in some cases.
  • Adhd: Attention Deficit Hyperactivity Disorder (ADHD) is a mental and behavioral disorder characterized by behavioral problems such as hyperactivity, inattention, concentration difficulty, and other mental symptoms. Typically, ADHD and associated hyperactivity is known as a childhood disorder, although ADD/ADHD in adults is known to be under-diagnosed. It is distinguished from Attention Deficit Disorder (ADD) which has a reduced focus on hyperactivity type symptoms.
  • Adhesive abuse: Adhesive abuse is the use of various inhalants for the purpose of achieving a "high". They are often used as a cheap, readily available alternative to street drugs but they can cause serious damage to the body. Adhesives include household glues, rubber cement and model aeroplane glue. These adhesives can be abused by sniffing them, spraying directly into the mouth, heating them and then inhaling them or injecting them directly into the body.
  • Adhesive addiction: Adhesive addiction refers to the compulsive need to abuse adhesives (e.g. sniffing them). Sufferers have withdrawal symptoms when attempting to stop the habit and feel unable to stop the habit despite knowing the harm it is causing their health. Aerosols are very damaging to the body and can readily result permanent brain damage and even death. Death can occur through chronic use and in rare cases can occur after one session of use. Children and teenagers are particular at risk for this type of addiction - it is readily available and users feel it gains them greater acceptance from their peers. Adhesives includes household glue, rubber cement and model airplane glue.
  • Adjustment problems: Adjustment problems are difficulties in coping or dealing effectively with situations.
  • Adolescent depression: It isnot unusual for young people to experience "the blues" or feel low occasionally. Adolescence is always an unsettling time, with the many physical, emotional, psychological and social changes that accompany this stage of life.
  • Adrenal Cancer: A malignant cancer that develops in the adrenal gland. The tumor may be nonfunctioning (does not produce hormones) or functioning in which case excessive levels of hormones can cause a variety of symptoms depending on which hormone is involved. Adrenal hormones made in the cortex (outer part of the gland) are aldosterone, corticosteroids and androgenic steroids. Adrenalin and noradrenalin are the hormones made in the medulla (central part of the adrenal gland).
  • Adrenal Cortex Diseases: Diseases of the adrenal cortex. Examples includes Addison's disease, Cushing's syndrome and adrenal fatigue.
  • Adrenal Cortex Neoplasms: A tumor that develops in the adrenal gland. The tumor may be nonfunctioning (does not produce hormones) or functioning in which case excessive levels of hormones can cause a variety of symptoms depending on which hormone is involved. Adrenal hormones made in the cortex (outer part of the gland) are aldosterone, corticosteroids and androgenic steroids.
  • Adrenal adenoma, familial: A benign tumor that develops in the adrenal gland and tends to run in families. The tumor may be nonfunctioning (does not produce hormones) or functioning in which case excessive levels of hormones can cause a variety of symptoms depending on which hormone is involved. Adrenal hormones made in the cortex (outer part of the gland) are aldosterone, corticosteroids and androgenic steroids . Adrenalin and noradrenalin are the hormones made in the medulla (central part of the adrenal gland).
  • Adrenal gland hyperfunction: Excessive activity of the adrenal gland which causes excessive production of one or more adrenal hormones (aldosterone, corticosteroids, androgenic steroids, epinephrine and norepinephrine). The increased adrenal gland activity may be caused by an adrenal gland tumor or by excessive stimulation of the gland. Pituitary hormones stimulate adrenal gland activity.
  • Adrenal gland hypofunction: Reduced adrenal gland activity due to damage to the adrenal gland or lack of stimulation of the gland. Pituitary hormones stimulate adrenal gland activity.
  • Adrenal gland symptoms: Symptoms affecting the adrenal glands
  • Adrenal hyperplasia: A group of disorder that occur when there is a problem in the process of making adrenal corticosteroids.
  • Adrenal hyperplasia, congenital type 3: A group of disorders that occur when a deficiency of 21-hydroxylase impairs the normal process of making adrenal corticosteroids. The severity of the condition is variable depending on the degree of deficiency.
  • Adrenal incidentaloma: A tumor of the adrenal gland that is discovered incidentally while performing an imaging examination for reasons other than an adrenal tumor. The tumor may be asymptomatic or can causes excessive secretion of adrenal hormones and resulting symptoms. The tumor may also be malignant or benign.
  • Adrenocortical carcinoma: A condition which is characterized by malignancy which affects the adrenocortex.
  • Adult Panic-Anxiety Syndrome: A psychiatric disorder involving anxiety and panic attacks that occur for no obvious reason.
  • Adverse reaction to chemical -- 1-Propanol: 1-Propanol is a chemical used in various antiseptics, polishes, cleaners, cosmetics and lacquer. Some people can suffer an adverse reaction to the chemical which mainly involves irritation to the part of the body exposed to the chemical - eyes, skin and gastrointestinal. The severity of symptoms varies amongst patients.
  • Aerosol abuse: Aerosol abuse is the use of various inhalants for the purpose of achieving a "high". They are often used as a cheap, readily available alternative to street drugs but they can cause serious damage to the body. Aerosols include air fresheners, hair spray, spray pain and deodorants. These aerosols can be abused by sniffing them, spraying directly into the mouth, heating them and then inhaling them or injecting them directly into the body.
  • Aerosol addiction: Aerosol addiction refers to the compulsive need to abuse aerosol (e.g. sniffing them). Sufferers have withdrawal symptoms when attempting to stop the habit and feel unable to stop the habit despite knowing the harm it is causing their health. Aerosols are very damaging to the body and can readily result permanent brain damage and even death. Death can occur through chronic use and in rare cases can occur after one session of use. Children and teenagers are particular at risk for this type of addiction - it is readily available and users feel it gains them greater acceptance from their peers. Aerosols includes spray pain, air freshener, deodorants and hair sprays.
  • Affective Disorders, Psychotic: A mental disorder involving mood disturbance and psychotic symptoms.
  • Affective aura: these are the auras which present with fear, paranoia or other emotions
  • Aggression: Overly aggressive behavior.
  • Aging brain syndrome: Aging processes in the brain can cause various psychological and neurological symptoms.
  • Agoraphobia: This is an irrational fear of being in public that sometimes is associated with panic attacks
  • Akathisia: A condition characterized by a constant urge to move resulting in the sufferer being unable to sit still. Can be caused by use of anti-psychotic drugs or anti-depressants or can occur spontaneously.
  • Akinetic mutism: Damage to parts of the brain (e.g. demyelinization and hydrocephalus) which results in a person being unable to talk or move despite the fact that they appear alert at times.
  • Alcohol Withdrawal: Symptoms that occur when alcohol consumption is discontinued or reduced. Symptoms may vary depending on the level of dependence.
  • Alcohol abuse: Excessive alcohol as a symptom of other conditions
  • Alcohol intoxication: excess intake of alcohol can lead to serious consequences
  • Alcohol use: Use of alcohol (as a symptom)
  • Alcohol-Induced Disorders: Disorders caused by excessive alcohol consumption. The symptoms are variable depending on the disorder involved. Some of the disorders are: alcohol abuse, alcohol dependence, alcohol intoxication, alcohol withdrawal, alcohol intoxication delirium, alcohol withdrawal delirium, alcohol-induced persisting dementia, alcohol-induced persisting amnestic disorder, alcohol-induced psychotic disorder, alcohol-induced mood disorder, alcohol-induced anxiety disorder, alcohol-induced sexual dysfunction, alcohol-induced sleep disorder, liver damage, liver cancer and esophageal cancer.
  • Alcohol-induced pseudo-Cushing syndrome: The excessive consumption of alcohol can result in symptoms similar to a condition called Cushing's syndrome. When alcohol consumption is stopped, symptoms regress.
  • Alertness: A state of function in which someone is watchfull
  • Alpha-Mannosidosis: A rare condition which is characterized by a lysosomal storage defect.
  • Alzheimer disease 10: An inherited form of Alzheimer's. Type 10 is caused by a genetic defect on chromosome 10p13.
  • Alzheimer disease 12: An inherited form of Alzheimer's. Type 12 is caused by a genetic defect on chromosome 8p12-q22.
  • Alzheimer disease 13: An inherited form of Alzheimer's disease that is linked to a defect on chromosome 1q21. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease 14: An inherited form of Alzheimer's disease that is linked to a defect on chromosome 1q25. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease 15: An inherited form of Alzheimer's disease that is linked to a defect on chromosome 3q22-q24. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease 16: Alzheimer disease 16 (late-onset) is a form of Alzheimer's disease that is linked to a defect on chromosome Xq21.3. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease 2, late-onset: Alzheimer disease 2 (late-onset) is a form of Alzheimer's disease that is linked to a defect on chromosome 19q13.2. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease 3, (early-onset Alzheimer disease): Alzheimer disease 3 is an early-onset form of Alzheimer's disease that is linked to a defect on chromosome 14q24.3. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease 5: An inherited form of Alzheimer's. Type 5 has a late onset and is caused by a genetic defect on chromosome 12p11.
  • Alzheimer disease 6: A genetic form of Alzheimer's. Type 6 has a late onset and is caused by a genetic defect on chromosome 10q24.
  • Alzheimer disease 7: An inherited form of Alzheimer's. Type 7 is caused by a genetic defect on chromosome 10p13.
  • Alzheimer disease 8: An inherited form of Alzheimer's. Type 8 is caused by a genetic defect on chromosome 20p.
  • Alzheimer disease 9: A genetic form of Alzheimer's. Type 9 has a late onset and is caused by a genetic defect on chromosome 19p13.2.
  • Alzheimer disease type 1: A degenerative brain disease characterized primarily by progressive dementia. Type 1 has an early onset (starts before the age of 65). It is caused by mutations in the APP gene which results in the production of a toxic protein (amyloid beta peptide) in the brain which collects into clumps (amyloid plaques) in the brain. These plaques cause damage to nerve cells in the brain.
  • Alzheimer disease type 2: A degenerative brain disease characterized primarily by progressive dementia. Type 2 has a late onset - starts after the age of 65. It is believed to be caused by a combination of genetic mutations and environmental and lifestyle factors. The condition occurs when there is excessive production of a toxic protein (amyloid beta peptide) in the brain which collects into clumps (amyloid plaques) in the brain. These plaques cause damage to nerve cells in the brain.
  • Alzheimer disease type 4: A degenerative brain disease characterized primarily by progressive dementia. Type 4 has an early onset (starts before the age of 65). It is caused by mutations in the PSEN2 gene which results in the production of a toxic protein (amyloid beta peptide) in the brain which collects into clumps (amyloid plaques) in the brain. These plaques cause damage to nerve cells in the brain.
  • Alzheimer disease, early-onset, with cerebral amyloid angiopathy: An early-onset form of Alzheimer's disease that is linked to a defect on chromosome 21q21. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease, familial: A degenerative brain disease characterized primarily by progressive dementia. The familial form is very rare and is completely inherited and has an early onset (usually in the 4th decade). It occurs when there is excessive production of a toxic protein (amyloid beta peptide) in the brain which collects into clumps (amyloid plaques) in the brain. These plaques cause damage to nerve cells in the brain.
  • Alzheimer disease, familial, 1: An inherited form of Alzheimer's disease that is linked to a defect on chromosome 21q. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease, familial, 11: An inherited form of Alzheimer's disease that is linked to a defect on chromosome 9p22.1. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease, familial, 3, with spastic paraparesis and apraxia: This form of Alzheimer's is an early-onset form of Alzheimer's that is linked to a defect on chromosome 14q24.3. It is characterized by features which are atypical for Alzheimer's - spastic paraparesis which occurs before the dementia symptoms and apraxia. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease, familial, 3, with spastic paraparesis and unusual plaques: This form of Alzheimer's is an early-onset form of Alzheimer's that is linked to a defect on chromosome 14q24.3. It is characterized by features which are atypical for Alzheimer's - spastic paraparesis which occurs before the dementia symptoms and unusual plaques in the brain. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease, familial, 4: An inherited form of Alzheimer's disease that is linked to a defect on chromosome 1q31-q42. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Alzheimer disease, familial, type 3: A degenerative brain disease characterized primarily by progressive dementia. Type 3 has an early onset (starts before the age of 65). It is caused by mutations in the PSEN1 gene which results in the production of a toxic protein (amyloid beta peptide) in the brain which collects into clumps (amyloid plaques) in the brain. These plaques cause damage to nerve cells in the brain.
  • Alzheimer's disease: A progressive degenerative disease of the brain of unknown cause
  • Alzheimer's disease without Neurofibrillary tangles: A form of Alzheimer's that involves only plaques and no neurofibrillary tangles. This form tends to have an older age of onset and death and a shorter disease duration.
  • Ambien withdrawal: Symptoms that occur when Ambien (Zolpidem) use is discontinued or reduced. Ambien is a sedative hypnotic drug. Symptoms may vary depending on the level of dependence.
  • Amotivational syndrome: An impaired desire to engage in normal social activities and situations due to external factors such as relationships, substance or events.
  • Amphetamine abuse: Use of the stimulant drugs known as amphetamines or "speed"
  • Amphetamine withdrawal: Symptoms that occur when amphetamine use is discontinued or reduced. Symptoms may vary depending on the level of dependence. Amphetamines include dexamphetamine (speed), Ritalin and MDMA (ecstasy).
  • Anaemia, sideroblastic, X-linked -- ataxia: A very rare inherited disorder characterized by mild anemia and early onset neurological motor symptoms. The neurological symptoms tend to be relatively stable or slowly progressive with only occasional dependence on crutches or wheelchairs.
  • Andropause: A symptomatic decline in male androgens that may occur as men age.
  • Anemia, hypochromic microcytic: A blood disorder where red blood cells are too small and lack sufficient iron. It can be inherited or caused by insufficient iron in the diet or from a genetic disorder.
  • Angelman syndrome: A rare genetic disorder characterized by a puppet-like gait, fits of laughter and characteristic facial features.
  • Anger: A strong feeling of displeasure and aggrevation
  • Angina pectoris: severe chest pain due to ischemia
  • Anhedonia: Anhedonia is an inability to experience pleasure from enjoyable experiences.
  • Anheidonia:
  • Anorexia Nervosa: A disorder where a distorted sense of body image leads to self-starvation to the point of death in some cases.
  • Anorexia nervosa, genetic types: There is mounting evidence that anorexia nervosa may be caused by genetic factors which when combined with psychosocial factors can increase a persons risk of developing the condition.
  • Anoxia: A condition marked by a lack of oxygen.
  • Anti-Social Personality Disorder: A psychiatric condition characterized by chronic behavioral and social problems which often involves criminal behaviour.
  • Anti-social personalities: A group of psychological condition which are characterized by anti-social behaviour
  • Anticholinergic syndrome: Symptoms caused by overdose of anticholinergic drugs.
  • Anxiety: Excessive worry, anxiety, or fear.
  • Anxiety disorder: A mental condition that is characterized by anxiety and avoidance behaviours
  • Anxiety disorder in pregnancy: Anxiety disorder in pregnancy causes a feeling of distress and apprehension usually related to the fear of a situation either real or imagined. Some physiological causes exist, and symptoms may be physical or psychological.
  • Anxiety due to labyrinthitis: Anxiety due to labyrinthitis refers to feelings of trepidation, nervousness, worry, and/or tension due to labyrinthitis.
  • Anxiety in children: Anxiety in children is a condition in which a child has feelings of trepidation, nervousness, worry, and/or tension.
  • Anxiety in pregnancy: Anxiety in pregnancy is a feeling of distress and apprehension usually related to the fear of a situation either real or imagined. Some physiological causes exist, and symptoms may be physical or psychological.
  • Anxiety-tension syndrome: Anxiety associated with physical symptoms such as tense muscles and fatigue.
  • Anxious frantic appearance: an anxious state of mind
  • Apathy: When an individual has a lack of feeling and emotion
  • Apnea: Periods of absence of breathing
  • Appian-Plutarch syndrome: Symptoms caused by excessive doses of a drug called atropine.
  • Apprehension: The feeling of suspicion or fear towards the future
  • Apprehension in pregnancy: Apprehension in pregnancy is a feeling of distress and anxiety usually related to the fear of a situation either real or imagined. Some physiological causes exist, and symptoms may be physical or psychological.
  • Argentinean hemorrhagic fever: An infectious disease caused by the Junin virus. Transmission can occur through contact with infected rodent (usually the corn mouse) urine, feces or saliva. The incubation period lasts from one to two weeks. The disease is most common in rural workers in Argentina.
  • Arthritis: A condition which is characterized by the inflammation of a joint
  • Asperger Syndrome, Susceptibility to, 1: Asperger Syndrome is considered to be a mild form of autism and manifests in symptoms such as problems with social interactions and repetitive behavior patterns and interests. Language and cognition skills are considerable less affected than in autism. Researchers have discovered that there are a number genetic anomalies linked to an increased risk of developing Asperger Syndrome. Type 1 is linked to a defect on chromosome 3q25-q27.
  • Asperger Syndrome, Susceptibility to, 2: Asperger Syndrome is considered to be a mild form of autism and manifests in symptoms such as problems with social interactions and repetitive behavior patterns and interests. Language and cognition skills are considerable less affected than in autism. Researchers have discovered that there are a number genetic anomalies linked to an increased risk of developing Asperger Syndrome. Type 2 is linked to a defect on chromosome 17p13.
  • Asperger Syndrome, Susceptibility to, 3: Asperger Syndrome is considered to be a mild form of autism and manifests in symptoms such as problems with social interactions and repetitive behavior patterns and interests. Language and cognition skills are considerable less affected than in autism. Researchers have discovered that there are a number genetic anomalies linked to an increased risk of developing Asperger Syndrome. Type 3 is linked to a defect on chromosome 1q21-q22.
  • Asperger Syndrome, X-linked, Susceptibility to, 1: Asperger Syndrome is considered to be a mild form of autism and manifests in symptoms such as problems with social interactions and repetitive behavior patterns and interests. Language and cognition skills are considerable less affected than in autism. Researchers have discovered that there are a number genetic anomalies linked to an increased risk of developing Asperger Syndrome. X-linked type 1 is linked to a defect on chromosome Xq13.
  • Asperger Syndrome, X-linked, Susceptibility to, 2: Asperger Syndrome is considered to be a mild form of autism and manifests in symptoms such as problems with social interactions and repetitive behavior patterns and interests. Language and cognition skills are considerable less affected than in autism. Researchers have discovered that there are a number genetic anomalies linked to an increased risk of developing Asperger Syndrome. X-linked type 1 is linked to a defect on chromosome Xp22.3.
  • Asperger syndrome: A neuropsychiatric disorder mainly involving the inability to understand and becoming involved in social interaction.
  • Attacks of crying: bouts of crying
  • Attacks of laughing: sudden bouts of laughter
  • Attacks of rage: episodes of increased anger
  • Attention Deficit Hyperactivity Disorder: Behavioral disorder with hyperactivity and/or inattention.
  • Attention Deficit and Disruptive Behavior Disorders: A condition characterized by attention problems and disruptive behavior. The condition is considered to be a grouping of three other disorders - oppositional defiant disorder, conduct disorder and attention-deficit hyperactivity disorder.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 1: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 1 is linked to a defect on chromosome 16p13.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 2: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 2 is linked to a defect on chromosome 17p11.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 3: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 3 is linked to a defect on chromosome 6q12.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 4: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 4 is linked to a defect on chromosome 5p13.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 5: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 5 is linked to a defect on chromosome 2q21.1.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 6: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 6 is linked to a defect on chromosome 13q12.11.
  • Attention Deficit-Hyperactivity Disorder, Susceptibility to, 7: ADHD or attention deficit hyperactivity disorder is a common neurobehavioral developmental disorder that usually occurs in childhood and can continue into adulthood. Researchers have discovered a number of genes linked to an increased susceptibility to ADHD. Type 7 is linked to a defect on chromosome 12q21.
  • Attenuated congenital adrenal hyperplasia: A late onset form of congenital adrenal hyperplasia where insufficient adrenal corticosteroids are produced by the body due to the deficiency of a particular chemical. The severity of symptoms varies from person to person and onset may occur as early as childhood.
  • Auditory Processing Disorder: Failure of the brain to correctly process sound.
  • Auditory hallucinations: An auditory perception that has no basis on external stimulation.
  • Autism: Childhood mental condition with social and communication difficulties.
  • Autism, Susceptibility to, 15: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 15 is linked to a genetic defect on chromosome 7q35-q36.
  • Autism, X-linked, susceptibility to, 1: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. X-Linked type 1 is linked to a genetic defect on chromosome Xq13.
  • Autism, X-linked, susceptibility to, 2: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. X-Linked type 2 is linked to a genetic defect on chromosome Xp22.3.
  • Autism, X-linked, susceptibility to, 3: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. X-Linked type 3 is linked to a genetic defect on chromosome Xp22.3.
  • Autism, susceptibility to, 1: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 1 is linked to a genetic defect on chromosome 7q22.
  • Autism, susceptibility to, 10: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 10 is linked to a genetic defect on chromosome 7q36.
  • Autism, susceptibility to, 11: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 11 is linked to a genetic defect on chromosome 1q24.
  • Autism, susceptibility to, 12: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 12 is linked to a genetic defect on chromosome 21p13-q11.
  • Autism, susceptibility to, 13: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 13 is linked to a genetic defect on chromosome 12q14.
  • Autism, susceptibility to, 14: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 14 is linked to a genetic defect on chromosome 16p11.2.
  • Autism, susceptibility to, 3: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 3 is linked to a genetic defect on chromosome 13q14.
  • Autism, susceptibility to, 4: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 4 is linked to a genetic defect on chromosome 15q11.
  • Autism, susceptibility to, 5: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 5 is linked to a genetic defect on chromosome 2q.
  • Autism, susceptibility to, 6: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 6 is linked to a genetic defect on chromosome 17q11.
  • Autism, susceptibility to, 7: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 7 is linked to a genetic defect on chromosome 17q21.
  • Autism, susceptibility to, 8: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 8 is linked to a genetic defect on chromosome 3q25-q27.
  • Autism, susceptibility to, 9: A developmental disorder characterized by an impaired ability to communicate with or relate to people or the environment around them and repetitive behavior. The severity of the disorder is variable. Researchers have discovered a number of genetic abnormalities linked to an increased susceptibility of developing autism. Type 9 is linked to a genetic defect on chromosome 7q31.
  • Autistic conditions: Medical conditions related to autism or autism spectrum disorders.
  • Autoimmune limbic encephalitis: Limbic encephalitis is an inflammation of the limbic system which is the part of the brain responsible for basic autonomic functions. In the paraneoplastic type, the inflammation is caused by autoimmune processes.
  • Autoimmune thyroid disease associated Celiac Disease: Patients with autoimmune thyroid disease are more susceptible to developing celiac disease than the average population. Celiac disease is an autoimmune disorder characterized by intolerance to gluten by the small intestine. The type and severity of symptoms varies amongst people - some people have severe gastrointestinal symptoms from infancy whereas other have no symptoms other than fatigue or anemia during adulthood.
  • Autoimmune thyroid diseases: Autoimmune diseases of the thyroid gland.
  • Avoidant personality disorder: Personality type that avoids other people
  • Back tumour: The presence of tumour growth in the vertebra, whether due to primary malignancies e.g. leukaemic or myeloma infiltration of the bone marrow, or due to secondary metastases from another site e.g. lung or breast.
  • Bacterial meningitis: Bacterial meningitis is a form of meningitis caused by bacteria that normally lives in the mouth and throat. When the immune system is unable to supress this bacteria, it travels to the cerebrospinal spinal fluid in the brain. From there it affects the membranes surrounding the brain.
  • Balance symptoms: Problems with balance or vertigo
  • Baltic myoclonic epilepsy: A rare inherited type of progressive myoclonus epilepsy which tends to cause symptoms during childhood. The involuntary muscle movements tend to occur more frequently and become more severe with increasing age. Symptoms may occur following various stimuli such as light, stress or exercise.
  • Barbiturate abuse: Abuse of barbiturate medications
  • Barre-Lieou syndrome: A rare condition where trauma (such as pinching by adjacent vertebrae or arthritis) to the sympathetic nerves located in the spinal area of the neck results in a variety of neurological symptoms.
  • Basal ganglia calcification, idiopathic 1: Abnormal calcium deposits in the part of the brain called the basal ganglia. Type 1 results in psychiatric, cognitive or neurological problems associated with the calcification. The symptoms experienced are variable.
  • Basilar artery insufficiency: refers to a temporary set of symptoms due to decreased blood flow in the posterior circulation of the brain
  • Bearsfoot hellebore poisoning: The Bearsfoot hellebore is a relatively small, flowering evergreen plant which originated in Europe. All parts of the plant contain protoanemonin which can be toxic if large quantities are consumed.
  • Behavioral disorders: Disorders affecting behavior and emotional wellbeing
  • Behavioral symptoms: Symptoms of personal behavior.
  • Bell mania: A rare life-threatening neuropsychiatric disorder involving delusions, hyperactivity and periods of fever. Death can occur within days or months without treatment.
  • Benzodiazepine abuse: Abuse of benzodiazepine tranquiliser medications
  • Bilateral abductor vocal cord paralysis syndrome: A complication that can occur following the removal of the thyroid gland.
  • Bing-Neel syndrome: A rare disorder involving infiltration of the central nervous system by abnormal leukemia-like cells (lymphoplasmocytoid cells) that occur in Waldenström's macroglobulinemia. The abnormality increases blood viscosity which impairs its circulation through small brain and eye blood vessels.
  • Binge eating: A condition which is characterized by the eating of copious amounts of food
  • Binswanger Disease: Multi-infarct dementia, caused by damage to deep white matter.
  • Binswanger's Disease: A type of senile dementia characterized by chronic cerebrovascular disease.
  • Biotin deficiency: Vitamin H deficiency
  • Bipolar disorder: Cycles of mania and depression; commonly called "manic-depression".
  • Bipolar disorder/cyclothymic disorder/hypomania:
  • Bipolar-like mania symptoms: bipolar disorder like mania conditions
  • Bipolar-like symptoms: bipolar disorder like conditions
  • Bizarre behaviour: strange mental and emotional behaviour
  • Black locust poisoning: The black locust is a large deciduous tree which has long clusters of scented flowers and flat fruit pods. The young leaves, seeds and inner bark contain various chemicals (robin, robinine and robitin) which can be toxic if large quantities are eaten. The flowers are considered edible if handled correctly.
  • Black nightshade poisoning: The Black Nightshade is a herb which bears small white or purple flowers and dull black berries. The plant originated in South America. The berries contain solanine alkaloid which can be toxic if eaten in large quantities. The leaves and unripe berries are considered toxic whereas the ripe fruit is possibly edible.
  • Blood cancer: Malignancy of one or several of the different types of cells in the blood
  • Body dysmorphic disorder: Delusional belief about body shape or appearance
  • Body focused repetitive behavior: Body focused repetitive behavior is a symptom of body focused repetitive behavior syndrome and other conditions in which there is behaviors, such as nail biting, skin biting and skin picking, that are repeated excessively.
  • Body image symptoms: Inappropriate self-belief about body shape.
  • Bolivian hemorrhagic fever: An infectious disease that occurs in Bolivia and is caused by the Machupo virus. Transmission can occur through contact with infected rodent (Calomys callosus) droppings. The incubation period lasts from one to two weeks.
  • Borderline Personality Disorder: Mental condition with behavioral and emotional problems.
  • Borna disease: An infectious neurological disease that affects warm-blooded animals. There is disagreement as to whether the virus may be the underlying cause of some cases of mental illness in humans.
  • Bottlebrush buckeye poisoning: The Bottlebrush buckeye is a deciduous shrub which bears clusters of white or pink flowers and smooth, leathery fruit containing shiny seeds. The plant originated in southern USA. The plant contains various toxic chemicals (glycoside esculin, saponin aescin) which can cause potentially fatal toxicity if sufficient quantities of the seeds or leaves are consumed.
  • Bouts of rage: Bouts of rage are episodes of extreme anger.
  • Box thorn poisoning: The leaves of the Box thorn plant contain a toxic chemical called atropine and possibly other toxic compounds. The box thorn plant is a spiny-stemmed shrub which originated in Europe. Symptoms can be quite serious depending on the quantity of the plant ingested.
  • Brain symptoms: Symptoms affecting the brain
  • Breast Duct Papilloma: Benign tumour of the collecting duct of the breast.
  • Brief Psychotic Disorder: Episodes of brief psychosis
  • Brill disease: A form of recurring typhus caused by a bacterium called Rickettsia prowazekii and transmitted by lice. The illness may occur years after the initial sickness and tends to be not as severe.
  • Brill-Zinsser disease: Reoccuring mild form of typhus.
  • Briquet syndrome: A rare, chronic mental disorder characterized mainly by often claiming to have constant physical illness when none is able to be detected. It most often occurs in young females.
  • Bubonic plague: Severe flea-borne bacterial disease
  • Bulimia nervosa: Eating disorder with binging (overeating) and purging (vomiting).
  • Burnett's milk drinker's syndrome: Burnett's milk drinker's syndrome is a condition where the body is too alkaline and the blood contains too much calcium which results in impaired kidney function. It can be caused by drinking large quantities of milk or using too many alkaline antacid remedies. High vitamin D intake can make the condition worse. The people most at risk of this condition tend to be older people (especially women) who are taking calcium supplements as well as calcium carbonate containing remedies to treat dyspepsia.
  • Burnett's syndrome: Burnett's syndrome is a condition where the body is too alkaline and the blood contains too much calcium which results in impaired kidney function. It can be caused by drinking large quantities of milk or using too many alkaline antacid remedies. High vitamin D intake can make the condition worse. The people most at risk of this condition tend to be older people (especially women) who are taking calcium supplements as well as calcium carbonate containing remedies to treat dyspepsia.
  • Burnout syndrome: Severe stress caused by work-related physical or mental trauma.
  • CFS subtype 1 (cognitive, musculoskeletal, sleep, anxiety/depression): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 1 tends to be more severe with the dominant symptoms being anxiety, depression and cognitive, musculoskeletal and sleeping problems.
  • CFS subtype 2 ( musculoskeletal, pain, anxiety/depression): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 2 tends to be more severe with the dominant symptoms being anxiety, depression, pain and musculoskeletal problems.
  • CFS subtype 3 (mild): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 3 tends to have milder symptoms than other subtypes.
  • CFS subtype 4 (cognitive, musculoskeletal, sleep, anxiety/depression): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 4 tends to be dominated by cognitive symptoms.
  • CFS subtype 5 (musculoskeletal, gastrointestinal): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 5 tends to be dominated by musculoskeletal and gastrointestinal symptoms.
  • CFS subtype 6 (postexertional): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 6 tends to be dominated by excessive fatigue following exertion.
  • CFS subtype 7 (pain, infectious, musculoskeletal, sleep, neurological, gastrointestinal, neurocognitive, anxiety/depression): Chronic fatigue syndrome is a chronic condition which is characterized by symptoms such as severe persistent fatigue, depression, weakness, muscle pain and lack of energy. The condition is often debilitating and may be difficult to diagnose due to lack of specific tests for the condition. There is no known cause but it appears to be associated with a previous infection in some cases. CFS subtype 7 tends to be more severe with the dominant symptoms being pain, infections, anxiety, depression and musculoskeletal, sleep, neurological, gastrointestinal and neurocognitive problems.
  • Calcification of basal ganglia with or without hypocalcemia: Calcification of a part of the brain called the basal ganglia. That calcification may be associated with conditions such as hypothyroidism, cytomegalovirus, and AIDS or may occur for no apparent reason. The severity of the condition may vary greatly from asymptomatic to neurological, psychiatric and movement disorders. The disorder may also progress at variable rates or remain stable depending on the underlying disease process.
  • California buckeye poisoning: The California buckeye is a deciduous shrub which bears clusters of white or pink flowers and smooth, leathery fruit containing shiny seeds. The plant originated in California. The plant contains various toxic chemicals (glycoside esculin, saponin aescin) which can cause potentially fatal toxicity if sufficient quantities of the seeds or leaves are consumed.
  • Capgras' syndrome: A rare delusional disorder where the patient believes that a friend or relative has been replaced by a double or imposter. They may even view themselves as a double. The disorder is often associated with schizophrenia or some sort of brain injury or damage.
  • Carukia barnesi sting: The Irukandji jellyfish is a very small type of box jellyfish found mainly in the northern tropical waters of Australia. Their sting is not particularly painful by the ensuing symptoms can be severe and life-threatening.
  • Catatonia: Motor muscle function disorder
  • Catatonic schizophrenia: Catatonic Schizophrenia means lessened muscle tone its symptoms are motor disturbances.
  • Catatonic syndrome: A rare syndrome often seen in schizophrenics or associated with central nervous system disturbances or brain trauma. The symptoms tend to occur in episodes with periods of remission in between.
  • Cathinone poisoning: Cathinone comes from the leaves of the Khat plant which is native to eastern Africa. Cathinone is a stimulant as well as have pain killing, weight loss and neuromuscular effects. The psychoactive effects are usually utilized by chewing on the leaves of the plant but sometimes dried leaves are used.
  • Celiac Disease: Digestive intolerance to gluten in the diet.
  • Celiac disease, susceptibility to 1: The susceptibility to developing celiac disease due to a genetic defect on chromosome 6p21.3. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 10: The susceptibility to developing celiac disease due to a genetic defect on chromosome 3q25-q26. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 11: The susceptibility to developing celiac disease due to a genetic defect on chromosome 3q28. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 12: The susceptibility to developing celiac disease due to a genetic defect on chromosome 6q25.3. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 13: The susceptibility to developing celiac disease due to a genetic defect in the SH2B3 gene on chromosome 12q24. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 2: The susceptibility to developing celiac disease due to a genetic defect on chromosome 5q31-q33. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 3: The susceptibility to developing celiac disease due to a genetic defect on chromosome 2q33. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 4: The susceptibility to developing celiac disease due to a genetic defect on chromosome 19p13.1. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 5: The susceptibility to developing celiac disease due to a genetic defect on chromosome 15q11-q13. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 6: The susceptibility to developing celiac disease due to a genetic defect on chromosome 4q27. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 7: The susceptibility to developing celiac disease due to a genetic defect on chromosome 1q31. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 8: The susceptibility to developing celiac disease due to a genetic defect on chromosome 2q11-q12. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Celiac disease, susceptibility to 9: The susceptibility to developing celiac disease due to a genetic defect on chromosome 3p21. Celiac disease is a small intestine disorder where the ingestion of foods containing wheat gluten and similar proteins leads to the inflammation of the small intestine lining. This damage affects absorption of nutrients and can cause symptoms such as diarrhea. Growth in children due to malabsorption may also result. The type and severity of symptoms is variable.
  • Cerebrotendinous Xanthomatosus: A rare syndrome where a genetic mutation results in a metabolic disorders caused by a deficiency of sterol 27-hydroxylase deficiency. The condition causes progressive neurological dysfunction, cataracts and premature atherosclerosis. Deposits of cholesterol and cholestanol can be found in any part of the body including the brain. The rate of progression and severity of symptoms varying amongst patients. The degree of neurological involvement is also variable.
  • Chagas disease: A parasitic infection caused by the protozoa Trypanosoma cruzi and transmitted by insect bites or blood transfusions. The disease primarily involves the heart and gastrointestinal system.
  • Change in appetite similar to that in depression: decreased or increase in appetite
  • Charcot-Marie-Tooth disease, X-linked recessive, 4: CMT is an inherited neurological disease characterized by the gradual degeneration of nerves which starts in the hands and feet and results in progressive numbness, muscle weakness and loss of function. Type 4X is an inherited defect of the X chromosome and affects males to a greater degree than females and also involves mental retardation and deafness.
  • Chat room addiction: Chat room addiction refers to the excessive amounts of time spent on computer chat rooms. When the person attempts to reduce the amount of time spent on the activity they suffer withdrawal symptoms such as irritability and anxiety. The preoccupation can cause problems with relationships and even with work performance.
  • Chemical addiction: Addiction to and abuse of various substances.
  • Chemical poisoning -- 1,3-Butadiene: 1,3-Butadiene is a chemical used in crop fungicides, carpet backing, paper coating and foams. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Acetylsalicylic Acid: Acetylsalicylic Acid is also known as aspirin and is primarily used to relieve pain, fever and inflammation. Excessive exposure to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Acrylamide: Acrylamide is a chemical used mainly in the treatment of waste water, grout agent, paper strengthening agent and adhesive agents. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Amitrole: Amitrole is a herbicide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Ammonium Sulfamate: Ammonium Sulfamate is a chemical used mainly in herbicides, fertilizers and. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Bromide: Bromide is a chemical used for many applications - flame retardant, industrial uses, pesticides, sanitary products, fumigants, medicines, dyes, photographic solutions and water purification. Bromides act as central nervous system depressants and the ingestion of excessive quantities can cause serious symptoms. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Carbon Disulfide: Carbon Disulfide is a chemical used mainly in corrosion inhibitors, cold and nickel plating, photography applications and as a solvent in gums and resins. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Carbon Tetrachloride: Carbon tetrachloride is a chemical used mainly in grain fumigants, insecticides and in the production of fluorocarbons. Ingestion and other exposures to the chemical can cause various symptoms. The chemical is readily absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chloralose: Chloralose is a chemical used mainly in poisons for rodents and crows . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chlordane: Chlordane is a poison use to control termites - is banned in the US and many other countries due to its harmful effects. Ingestion and other exposures to the chemical can cause various symptoms. The chemical is readily absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chloromethane: Chloromethane is a chemical used mainly in the production of silicones as well as agricultural chemicals, butyl rubber and other products. Ingestion and other exposures to the chemical can cause various symptoms. The chemical is readily absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Ethylene Glycol Dinitrate: Ethylene Glycol Dinitrate is a chemical used mainly in the manufacture of commercial dynamite and blasting gelatin. The chemical may be absorbed readily through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Gasoline: Gasoline is a chemical used as a fuel for combustion engines. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Glaze: Glazes are used to put a shiny finish on various surfaces such as pottery. Glazes contain chemicals such as lead and zinc oxide which can cause serious symptoms if sufficient quantities are eaten. The chemicals cause damage to the gastrointestinal lining and the damage may continue for weeks after the poison was ingested. Death can result in severe cases. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Hydroquinone: Hydroquinone is a chemical used mainly in photography developing solution, pharmaceuticals, fur processing, paints, fuel, organic chemicals, plastics, stone coatings and styrene monomers. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Jet Fuel-4: Jet Fuel-4 is an aviation turbine fuel used by the US military. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Lysergic Acid Diethylamide: Lysergic Acid Diethylamide is a hallucinogenic drug which is often misused. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Manganese: Manganese is a chemical used mainly in fertilizers, welding rods, matches, electrical coils, ceramics and animal food additives. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Methyl Bromide: Methyl Bromide is a chemical used mainly in insecticides, fire extinguishers, wool degreasers and oil extraction. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Nickel Carbonyl: Nickel Carbonyl is a chemical used mainly in petroleum and rubber production and in electroplating. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Nitroglycerin: Nitroglycerin is a chemical used mainly in the manufacture of explosives, dynamite, rocket propellant and smokeless powders. The chemical is readily absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Nitrotoluene: Nitrotoluene is a chemical used mainly in industrial applications for the production of things such as agricultural chemicals, explosives, rubber chemicals, sulfur dyes and azo dyes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Phencyclidine: Phencyclidine is often used as an illegal recreational drug. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Propoxur: Propoxur is a carbamate pesticide used mainly as an insecticide and acaricide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Solder: Solder contains various chemicals and heavy metals which can cause serious symptoms if sufficient quantities are swallowed. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Thallium: Thallium is an element used for such things as electronic devices, selenium rectifiers, gamma radiation detection apparatus, transmission equipment and infrared radiation detection. It is also used as a catalyst in various manufacturing processes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Thallium Sulfate: Thallium Sulfate is a chemical used mainly in the manufacture of switches and closures in the semiconductor industry. It has historically also been used as a rodenticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Trichloroethane: Trichloroethane is a chemical used mainly as an industrial solvent but also in inks and lubricants. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chicken soup poisoning: The consumption of excessive amounts of chicken soup can result in serious symptoms due to very high salt levels in the body. Children and the elderly are more likely to be affected by the high salt levels of chicken soup however the condition is rarely seen. Chicken soup is often promoted as useful for treating colds, asthma or emaciation.
  • Child abuse: Physical, sexual, emotional abuse or neglect of child.
  • Childhood depression: Childhood depression is just as serious as adult depression. However, it is important to recognize that children have unique signs to be aware of when recognizing and diagnosing depression.
  • Childhood disintegrative disorder: A rare disorder where a period of normal development (a couple of years) is followed by delays in the development of motor, social and language skills. Previously acquired skills are lost.
  • Childhood-Onset Schizophrenia: A rare early-onset form of the mental disorder called schizophrenia. Symptoms start before the age of thirteen. Symptoms usually start gradually and are often preceded by slow motor, speech and language development.
  • Childhood-onset bipolar disorder: Bipolar disorder is a serious mental illness characterized by recurrent episodes of depression, mania, and/or mixed symptom states. These episodes cause unusual and extreme shifts in mood, energy, and behavior that interfere significantly with normal, healthy functioning.
  • Cholestasis disease of pregnancy: A liver condition that can occur usually in the last stage of pregnancy. The flow of bile in the gallbladder or liver is impaired by the high levels of pregnancy hormones. The bile acids build up in the organs and then enter the bloodstream. The main symptom is usually itching. Symptoms usually resolve after delivering the baby. Risk factors includes existing liver condition, multiple pregnancy and a family history of the condition.
  • Choreoacanthocytosis amyotrophic: A rare inherited disease involving neurological degeneration and abnormal red blood cell shape. The disorder progresses slowly and causes involuntary movements, loss of cognitive ability, behavioral changes and seizures.
  • Christmas Cherry poisoning: The Christmas Cherry is a small reddish-orange fruit. The plant contains a compound called solanocapsine which can cause symptoms if excessive amounts are consumed. The compound is found in all parts of the plant - especially the leaves and unripe fruit. Very large amounts would need to be consumed to cause symptoms due to the low toxicity of the compound.
  • Chromosome 17p, partial deletion: A rare chromosomal disorder involving deletion of genetic material from the short arm of chromosome 17. The type and severity of symptoms are determined by the amount and location of the lost genetic material.
  • Chromosome 22q deletion: A rare genetic disorder where a portion of the genetic material from the long arm of chromosome 22 is missing. The symptoms or severity may vary somewhat between patients.
  • Chromosome 22q11 Deletion Spectrum: A rare chromosomal disorder where a small piece of genetic material is missing from chromosome 22 at the q11 location.
  • Chromosome 22q11.2 deletion syndrome: A rare genetic disorder caused by the absence of a small portion of genetic material. A small section of chromosome 22 is missing at a location called q11.2. Chromosome 22 is one of 23 pairs of chromosomes that exist in humans.
  • Chronic Pesticide poisoning -- xylene: Xylene is an ingredient used in certain insecticides. Exposure to the chemical can cause a range of symptoms depending on the level and route of exposure. Exposure can occur through inhalation, ingestion, the skin or eyes. Acute exposure involves a exposure over a short period of time whereas chronic exposure occurs over a longer period of time.
  • Chronic adhd-like symptoms: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Chronic adhd-like symptoms in adults: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Chronic adhd-like symptoms in children: is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms include
  • Chronic anxiety: anxiety is a feeling of apprehension or fear
  • Chronic bipolar-like mania symptoms: bipolar disorder like mania conditions
  • Chronic bipolar-like symptoms: bipolar disorder like conditions
  • Chronic depression: Chronic depression is a mental disorder characterized by an all-encompassing low mood accompanied by low self-esteem, and loss of interest or pleasure in normally enjoyable activities and this maybe present for months together.
  • Chronic depression-like symptoms: conditions which cause depression like symptoms
  • Chronic episodic adhd-like symptoms: ADHD is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms but episodic in nature include
  • Chronic episodic bipolar-like symptoms: episodes of bipolar disorder
  • Chronic episodic depression-like symptoms: conditions which cause episodic depression like symptoms
  • Chronic episodic mania-like symptoms: episodic symptoms of mania
  • Chronic fatigue syndrome: A persistent debilitating fatigue of recent onset
  • Chronic hyperactivity in adults: maybe to due to various causative agents
  • Chronic hyperactivity in the workplace: maybe due to stress or an underlying neurological lesion
  • Chronic hypomania-like symptoms: symptoms of hypomania
  • Chronic recurring depression-like symptoms: conditions which cause recurring depression like symptoms
  • Chronic seasonal depression-like symptoms: conditions which can causes seasonal depression
  • Ciguatera poisoning: Rare toxic food poisoning from eating contaminated fish
  • Circadian rhythm sleep disorder: A group of sleep disorders involving abnormalities in the timing of the sleep-wake cycle. Examples include jet lag and shift work sleep disorder. Sufferers are unable to wake and sleep in the normal routines required to function in normal work, school and social settings. The sleep quality is usually normal.
  • Classic childhood ALD: Classic severe form of ALD in boys.
  • Claustrophobic experiences: fear of enclosed spaces
  • Claviceps purpurea poisoning: Claviceps purpurea is a type of fungus that can contaminate grains such as rye, wheat, oats and barely. Ingestion of contaminated foods can cause poisoning with the severity of symptoms varying depending on the amount consumed.
  • Coastal leucothoe poisoning: The coastal leucothoe is an evergreen shrub which bears small clusters of bell-shaped, white flowers in the apex of the leaves. It also bears small capsulated fruit. The leaves and flower nectar contain a chemical called andromedotoxin which is very toxic and can cause death if sufficient quantities are eaten.
  • Cocaine abuse: Stimulant drug with various effects
  • Cocaine addiction: An uncontrollable desire to use cocaine on a regular basis. Chronic cocaine use can lead to dependency in as little as two weeks. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
  • Cocaine overdose: Cocaine is an illegal and highly addictive recreational drug. Excessive doses of the drug can result in various symptoms and even death in severe cases.
  • Cocaine withdrawal: Symptoms that occur when cocaine use is discontinued or reduced. Symptoms may vary depending on the level of dependence.
  • Colchicine toxicity: The toxic reaction of the body to the substance, possibly via allergic reaction or overdose.
  • Collagenous celiac disease: Collagenous celiac disease is used to describe progressive celiac disease characterized by the presence of a layer of collagen (scarring) in the intestinal layers. This form of celiac disease usually fails to respond to treatments such as gluten-free diets. Celiac disease is an autoimmune disorder characterized by intolerance to gluten by the small intestine. The condition usually fails to respond to treatment and has a poor prognosis.
  • Combat stress reaction: A term used in the military which refers to behaviors that result from the stress of fighting in a war.
  • Complex partial seizure: A complex seizure is an electrical disturbance that originates in only one part of the brain and resulting in symptoms related to the body functions or parts that are controlled by that part of the brain. Partial seizures where the patient has altered consciousness are called complex partial seizures. During a simple partial seizure movement, sensations, feelings or emotions may be affected. Partial seizures may spread to other parts of the brain and are then called generalized seizures. These seizures usually only last a few minutes.
  • Complex partial seizure disorder: Complex partial seizure disorder is an electrical disturbance that originates in only one part of the brain and resulting in symptoms related to the body functions or parts that are controlled by that part of the brain. Partial seizures where the patient has altered consciousness are called complex partial seizures. During a simple partial seizure movement, sensations, feelings or emotions may be affected. Partial seizures may spread to other parts of the brain and are then called generalized seizures. These seizures usually only last a few minutes.
  • Compulsions: an irrestible impulse to perform a particular action
  • Compulsions in children: Compulsions in children refers to a child's behavior that is characterized by strong urges to complete irrational actions.
  • Computer addiction: Computer addiction refers to the excessive amounts of time spent on the computer. The preoccupation can cause problems with relationships and even with work performance. The time spent on the computer does not refer to work-related activities.
  • Concentration camp survivor syndrome: A type of post-traumatic stress disorder that is seen in people who have surveved abuse in concentration camps.
  • Congenital adrenal hyperplasia (CAH): A group of disorder that occur when there is a problem in the process of making adrenal corticosteroids.
  • Congenital adrenal hyperplasia -- non-classical form: A late onset form of congenital adrenal hyperplasia where insufficient adrenal corticosteroids are produced by the body due to the deficiency of a particular chemical. The severity of symptoms varies from person to person and onset may occur as early as childhood.
  • Congenital adrenal hyperplasia -- sodium-wasting form: A group of disorder that occur when a deficiency of 21-hydroxylase impairs the normal process of making adrenal corticosteroids - a severe deficiency of 21-hydroxylase causing salt-wasting which is potentially fatal.
  • Congenital hepatic porphyria: A rare congenital disorder where there is an excess of porphyrin (pigments) in the body. The liver is responsible for making porpyrins.
  • Conn's adenoma: An uncommon (but possible highly underdiagnosed) condition characterized by the excessive production of a hormone called aldosterone by the adrenal gland. The condition may result from the presence of an adrenal adenoma. The severity of the condition is variable with some patients simply suffering high blood pressure and no other symptoms. Due to the high degree of variation in presenting symptoms, the condition may be frequently underdiagnosed or misdiagnosed.
  • Conn's syndrome: An adrenal gland disorder where excess aldosterone hormone is produced resulting in symptoms such as headache, fatigue, nocturia and increased urine production. Also called primary hyperaldosteronism.
  • Conn-Louis Carcinoma: An uncommon (but possible highly underdiagnosed) condition characterized by the excessive production of a hormone called aldosterone by the adrenal gland. The condition results from the presence of an adrenal carcinoma. The severity of the condition is variable with some patients simply suffering high blood pressure and no other symptoms. Due to the high degree of variation in presenting symptoms, the condition may be frequently underdiagnosed or misdiagnosed.
  • Constant state of apprehension: Constant state of apprehension is a steady condition of being anxious and uneasy.
  • Cope's syndrome: Cope's syndrome is a condition where the body is too alkaline and the blood contains too much calcium. It can be caused by drinking large quantities of milk or using too many alkaline antacid remedies. High vitamin D intake can make the condition worse. The people most at risk of this condition tend to be older people (especially women) who are taking calcium supplements as well as calcium carbonate containing remedies to treat dyspepsia. Severe cases can lead to impaired kidney function (Burnett's syndrome).
  • Corsican Hellebore poisoning: The Corsican hellebore is often grown in gardens. It bears cupped, light green flowers. The plant contains a chemical called protoanemonin which can cause symptoms if eaten in large quantities. Skin exposure to the plant can also cause skin irritation but it is usually minor and short-lived.
  • Cotard syndrome: A rare syndrome involving depression, suicidal thoughts and the belief that they no longer have a body and are already dead. Sometimes they believe that their body is rotting or that they have no blood or internal organs. Occasionally they believe they are immortal. The condition may have neurological or mental origins.
  • Crack addiction: An uncontrollable desire to use crack on a regular basis. Chronic crack use can lead to dependency in as little as two weeks. Crack is a form of cocaine - powdered cocaine is heated with ammonia or sodium bicarbonate to make rocks of crack. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
  • Crack withdrawal: Symptoms that occur when cocaine hydrochloride use is discontinued or reduced. Symptoms may vary depending on the level of dependence.
  • Craving and eating inedible substances: known as pica is a disorder characterised by an appetite for largely non-nutritive substances
  • Cravings: Desires for unusual foods.
  • Cravings in children: Cravings in children are unusual or excessive desires for certain foods, substances, or situations in children.
  • Creatine deficiency, X-linked: A rare inherited disorder characterized mainly by mental retardation, seizures, short stature and facial anomalies. The disorder is caused by the absence of a compound needed to transport creatine and thus creatine levels may be normal or high, but the body is unable to utilize it.
  • Creutzfeldt-Jakob Disease: A very rare degenerative brain disease that can be inherited, transmitted (eg in surgical transplants using infected tissue) or as a result of genetic mutations. The condition is fatal.
  • Crystal meth addiction: An uncontrollable desire to use crystal meth on a regular basis. Crystal meth is a powerful stimulant used illegally for its effects. It is highly addictive and known by street names such as ice, speed, glass, crank and chalk. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
  • Cushing syndrome, familial: A hormonal disorder caused by high levels of the cortisol hormone due to the abnormal development of the adrenal gland.
  • Cushing's disease: A condition of hyperadrenocorticism which is secondary to excessive pituitary secretion of ACTH. Cushing's disease is different to Cushing's syndrome which refers to the effects of glucocorticoid excess from any cause.
  • Cushing-like symptoms: Symptoms similar to those of Cushing's disease
  • Cycad nut poisoning: The cycad nut contains a toxic chemical called cyasin which can be leeched out by soaking in water. The nuts are often used as a food source but it is important to leech out the toxic chemicals first. Eating nuts that still contain the toxin can cause serious symptoms. Cycad nuts may also increase the risk of developing liver cancer.
  • Cycad poisoning: Cycads are a green plant which has a thick trunk from the top of which sprouts palm-like leaves. Eating the seeds, leaves or unprocessed flour made from the trunk of the plant can cause various symptoms if large quantities are eaten. The harmful compounds in the plant are glycosides and BMAA
  • Cyclical edema syndrome: Periodic swelling or bloating that occurs in women while they are standing but disappears when they lie down. Excessive aldosterone hormone may cause the problem which tends do become worse in the period leading up to menstruation.
  • Cyclothymia:
  • Cyclothymic disorder: A persistent disorder where the sufferer's mood swings from elation to depression are not severe enough to be diagnosed as bipolar disorder.
  • Cysticercosis: An infectious disease caused by the pork tapeworm Taenia solium. If the larvae are ingested then a mild or asymptomatic tapeworm infection occurs. However, ingested eggs pass into the bloodstream where they can then enter various tissues and form the cysts that characterize cysticercosis.
  • Cystitis: Bladder infection or inflammation
  • Dana syndrome: A rare inherited disorder characterized by the gradual degeneration of the white matter of the spinal cord and pernicious anemia. Various neurological symptoms can result.
  • Daphne poisoning: Daphne is a shrub that contains a toxin called mezerein (skin irritant) in the bark as well as a toxin called daphnin. The bark, sap and berries are the most toxic parts of the plant. The plant is native to Europe and Asia but is also found in other parts of the world such as America. A single berry or leaf can cause symptoms and 2 or 3 can cause death in a child. About 12 berries or leaves can cause quite severe symptoms in adults.
  • Deadly nightshade (Solanum dulcamara) poisoning: The deadly nightshade is a woody vine and is considered quite toxic. It is found in Europe, Asia, North Africa and North America. There are a number of species of nightshade with variable toxicity. The Solanum dulcamara is considered less toxic with about 200 berries needed to cause death.
  • Decreased folate: Decrease in one of the B vitamins required for red blood cell production
  • Decreased oxygen saturation: decreased amount of oxygen that is dissolved or carried in a given medium
  • Decreased serum phosphate: A decrease in the level of phosphate in the serum plasma
  • Deletion 22q11: A rare chromosomal disorder where a small piece of genetic material is missing from chromosome 22 at the q11 location.
  • Delirium: Severe mental deterioration
  • Delirium in children: Delirium in children is a condition in which a child experiences sudden confusion and cognitive changes that can occur due to physical or mental diseases or disorders..
  • Delirium tremens: A condition which occurs due to the withdrawal of a substance particularly alcohol and results in tremors of the hands and arms
  • Delusional disorder: Persisting delusional beliefs
  • Delusions: Inappropriate or irrational beliefs.
  • Dementia: Mental confusion and impaired thought.
  • Dementia With Lewy Bodies: Second most frequent cause of dementia in elderly adults.
  • Dementia, familial British: A rare, early-onset inherited form of dementia caused by deposits of amyoid substances (amyloid) and degenerative nerve changes in the brain.
  • Dentatorubral Pallidoluysian Atrophy: A condition caused by an abnormality of the DNA sequence on chromosome 12
  • Depersonalisation: A feeling that you are cut off from reality, in a day dreaming state of mind.
  • Deposition diseases related fibromyalgia: Deposition diseases related fibromyalgia refers to fibromyalgia that is associated with deposition diseases. Fibromyalgia is a chronic condition characterized mainly by pain mainly in the muscles which involves no associated damage to the tissues. Deposition diseases involve the abnormal deposit of material in parts of the body such as the joints e.g. gout.
  • Depression due to brucellosis: Depression due to brucellosis is a condition in which there are ongoing and severe feelings of melancholy, sadness, despair and worthlessness as a result of brucellosis, an infectious disease.
  • Depressive disorders: Depression or its various related conditions.
  • Depressive symptoms: Inappropriate depressed mood.
  • Depressive symptoms in pregnancy: Depressive symptoms in pregnancy can include a lowered mood, altered sleep pattern, altered appetite and fatigue.
  • Dercum syndrome: A rare condition characterized by the development of painful, localized fatty skin swellings.
  • Dermatillomania: A form of obsessive compulsive disorder where a person compulsively picks at their own skin. Sufferers can feel the pain they inflict on themselves but the feelings of gratification and stress relief prevent them from stopping. The severity and extent of damage to the skin is variable. Stress and anxiety can trigger the compulsive skin picking.
  • Despair: feeling of melancholy
  • Detachment: Inappropriate loss of interest or involvement.
  • Devil's trumpet poisoning: The Devil's trumpet is a shrubby plant with purple stems and large white or yellow flowers. The fruit is covered by a spiny shell. The plant originated in china and is often used as an ornamental outdoor plant. The plant contains tropane alkaloids which can be poisonous if eaten in large quantities.
  • Dexedrine overdose: Dexedrine is a prescription drug mainly used to treat attention deficit hyperactivity disorder and narcolepsy. Excessive doses of the drug can result in various symptoms and even death in severe cases.
  • Dexedrine withdrawal: Symptoms that occur when Dexedrine use is discontinued or reduced. Dexedrine is an amphetamine. Symptoms may vary depending on the level of dependence. Symptoms are usually peak during the second day and last about a week.
  • DiGeorge syndrome: 22q11.2 deletion syndrome is a genetic disorder which can result in a vast array of symptoms. Various names have been used to describe different manifestations of the syndrome. Di George Syndrome primarily involves an underdeveloped thymus and parathyroid glands which results in lowered immunity low blood calcium levels respectively. Another primary feature is heart defects. Various other variable features are also present. It is not uncommon for patients to have more than one of the 22q11.2 deletion syndrome subtypes which can make diagnosis confusing - other subtypes include Sphrintzen syndrome, Caylor cardiofacial syndrome and CATCH 22.
  • Diabetes insipidus, diabetes mellitus, optic atrophy: A rare association of diabetes insipidus, diabetes mellitus, optic atrophy, and deafness.
  • Dilutional hyponatremia: Low sodium levels due to excessive fluids.
  • Diseases associated with senile cataract: It is a vision impairing disease characterised by gradual , progressive thickening of the lens.
  • Disorganised schizophrenia:
  • Disorganization: Difficulty staying organized in society as a symptom
  • Dissociative Identity Disorder: A neurotic mental disorder where a person's field of consciousness is limited in order to fulfill an unconscious goal. Often selective amnesia is involved and the person develops what is called multiple personalities.
  • Dobriner syndrome: An inherited metabolic disorder involving a deficiency of coproporphyrinogen oxidase. The condition is similar to but milder than intermittent porphyria and sometimes includes photosensitivity.
  • Double Depression: Double depression occurs when someone with dysthymia experiences an episode of major depression.
  • Down's Syndrome associated Alzheimer's disease: Early-onset Alzheimer's is more prevalent in Down's Syndrome sufferers than in the general population. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Down's syndrome associated Celiac Disease: Patients with Down's syndrome have a high degree of susceptibility to developing celiac disease. Up to 17% of Down's syndrome sufferers develop celiac disease but this rate varies amongst age groups and country of origin. Celiac disease is an autoimmune disorder characterized by intolerance to gluten by the small intestine. The type and severity of symptoms varies amongst people - some people have severe gastrointestinal symptoms from infancy whereas other have no symptoms other than fatigue or anemia during adulthood.
  • Drowsiness: Excessive tiredness or sleepiness
  • Drug abuse: Drug use as a symptom of other conditions
  • Drug overdose: A condition characterized by the consumption in excess of a particular drug causing adverse effects
  • Drug poisoning: The poisoning of an individual with a noxious substance
  • Dyslexia: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia.
  • Dyslexia, Susceptibility to, 1: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 1 is linked to a defect on chromosome 15q21.
  • Dyslexia, Susceptibility to, 2: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 2 is linked to a defect on chromosome 6p22.2.
  • Dyslexia, Susceptibility to, 3: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 3 is linked to a defect on chromosome 2p16-p15.
  • Dyslexia, Susceptibility to, 4: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 4 is linked to a defect on chromosome 6q11.2-q12.
  • Dyslexia, Susceptibility to, 5: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 5 is linked to a defect on chromosome 3p12-q13.
  • Dyslexia, Susceptibility to, 6: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 6 is linked to a defect on chromosome 18p11.2.
  • Dyslexia, Susceptibility to, 7: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 7 is linked to a defect on chromosome 11p15.5.
  • Dyslexia, Susceptibility to, 8: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 8 is linked to a defect on chromosome 1p36-p34.
  • Dyslexia, Susceptibility to, 9: Dyslexia is a name for a condition where people have difficulty with reading and writing. People with dyslexia have normal intelligence and are not in any way mentally retarded or intellectually challenged. The difficulty with certain tasks is believed to be related to problems with perception capability in certain parts of the brain. Researchers have discovered that there are a number of genes linked to an increased susceptibility to dyslexia. Genetic forms of dyslexia are considered to be primary dyslexia and patients tend to have problems with reading, writing and spelling even as adults. Type 9 is linked to a defect on chromosome Xq27.3.
  • Dysomnia: Dysomnia is a general term for sleep disorder. It is a primary sleep disorder in which the patient suffers from changes in the quantity, quality, or timing of sleep.
  • Dysphasic dementia, hereditary: An inherited form of dementia caused by nerve degeneration.
  • Dysthymia: Chronic depression usually associated with elderly people suffering stress from a variety of causes.
  • Dysthymia/seasonal depression disorder, PND:
  • Dystonia-Parkinsonism, Adult-Onset: A rare condition characterized by the association of parkinsonism and dystonia due to a neurodegenerative disorder which progresses quickly.
  • Early-onset Alzheimer's: Early-onset Alzheimer's is a form of Alzheimer's disease that is linked to genetic defects or occurs in a familial pattern. It is not as common as the non-inherited form of Alzheimer's - occurs in up to 90% of Alzheimer sufferers. Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour.
  • Eating dirt and other non-food materials in children: Eating dirt and other non-food materials in children is a condition in which a child consumes non-food substances, also called pica.
  • Eating symptoms: Symptoms related to eating.
  • Ecstasy abuse: Use of the illicit drug called ecstasy
  • Ecstasy addiction: An uncontrollable desire to use ecstasy on a regular basis. Chronic ecstasy use can lead to dependency in as little as two weeks. Ecstasy is a synthetic psychoactive drug often used as a recreational drug. Street names for the drug includes: XTC, Adam, Clarity, Lover's Speed, Hug, Beans and Love Drug. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
  • Ecstasy overdose: Ectsasy is an illegal and highly addictive recreational drug. Excessive doses of the drug can result in various symptoms and even death in severe cases.
  • Ecstasy withdrawal: Symptoms that occur when ecstasy use is discontinued or reduced. Symptoms may vary depending on the level of dependence.
  • Ectopic ACTH Syndrome: A tumour arising in the body which releases excess quantities of ACTH
  • Elective mutism: A rare psychiatric disorder where a child chooses not to speak in a social setting even though they are capable of speaking and often do so at home.
  • Electrolyte abnormality: An imbalance in the level of any of a number of chemicals (electrolytes) in the blood stream e.g. chloride, sodium, magnesium, potassium, calcium, phosphate and bicarbonate. Symptoms can vary depending on which electrolyte is involved and the severity of the imbalance - severe cases can readily lead to death. An electrolyte abnormality can be caused by such things excessive loss of body fluid through vomiting or diarrhea, kidney conditions, malabsorption and various drugs such as diuretics and chemotherapy drugs.
  • Elephant's-ear poisoning: The Elephant's ear is a common garden plant which has large, heart-shaped leaves on long stalks. The plant contains calcium oxalate and saphotoxin which can cause poisoning if eaten and irritation upon contact with skin or eyes. The toxins are quite poisonous and death can occur if sufficient quantities are eaten.
  • Emotional stress: A condition which occurs when a person is under stress affecting their emotions
  • Emotional symptoms: Symptoms affecting the emotions.
  • Encephalitis: Infection of the brain (as a symptom)
  • End Stage Liver Failure: Late stage of liver failure characterised by the onset of mental and neurological symptoms, due to build up of toxic metabolites.
  • Endogenous depression: Endogenous depression is a mood disorder that affects some people from birth and is believed to be a genetic condition. A sufferer is prone to become depressed on the advent of traumatic events, exhaustion or when under high levels of stress and may not be aware of the disorder until confronted by symptoms of depression for the first time.
  • Epidemic typhus: An infectious disease caused by Rickettsia prowazekii and transmitted by body lice. The severity of the illness may range from moderate to fatal.
  • Epilepsy: Paroxysmal transient disturbances of brain function that may manifest as loss of consciousness, abnormal motor phenomena
  • Epileptic encephalopathy, early infantile, 2: A genetic form of epilepsy which is severe and starts during infancy. The condition is considered an atypical form of Rett syndrome due to the development of stereotypical hand movements and repetitive behaviors. This form of the condition is caused by a defect on the CDKL5 gene.
  • Episodic adhd-like symptoms: ADHD is a neurodevelopmental behavioural disorder affecting 3-5% of the population characterised by 3 main components: hyperactivity, impulsivity and inattention. Some conditions which cause similar symptoms but episodic in nature include
  • Episodic bipolar-like symptoms: episodes of bipolar disorder
  • Episodic depression-like symptoms: conditions which cause episodic depression like symptoms
  • Episodic hyperactivity: state of overactive restlessness
  • Episodic mania-like symptoms: episodic symptoms of mania
  • Epstein Barr virus related fibromyalgia: Epstein Barr virus related fibromyalgia refers to fibromyalgia that is associated with infection with the Epstein Barr virus. Fibromyalgia is a chronic condition characterized mainly by pain mainly in the muscles which involves no associated damage to the tissues.
  • Euphoria: Extreme happiness or raised mood
  • Excessive dieting: Excessive limitation of food intake can lead to problems and effects such as dizziness, depression, intestinal problems, edema and impaired growth.
  • Excitement: The sensation of increased anxiety and anticipation
  • Eyelid eczema: Eyelid eczema is a chronic skin condition affecting the eyelids. The skin of the eyelids becomes itchy, red and scaly. Often other parts of the body also have eczema.
  • Factitious syndromes: A disorder that a person believes they have that however does not exist
  • Familial Forms of Alzheimer's Disease: Alzheimer's disease is a progressive disorder involving degeneration of the brain. The disease mainly affects brain functions involving thinking, memory, personality and behaviour. Familial forms of the disease tend to run in families and are linked to mutations on various genes. Chromosome 1, 14 19 and 21 are the main chromosomes where mutations resulting in Alzheimer's are located..
  • Familial dysautonomia: An inherited biochemical disorder that primarily affects the autonomic and sensory nervous system.
  • Familial hypopituitarism: Impaired pituitary gland hormone-producing activity that tends to run in families. The failure of the pituitary gland in turn affects other hormone-producing glands which rely on the hormones from the pituitary gland for their activity. Symptoms are determined by the degree and type of hormone deficiency involved.
  • Familial hypothyroidism: Impaired thyroid activity that tends to run in families.
  • Fatal familial insomnia: A very rare inherited brain disease that severely affects sleep and causes progressive deterioration of mental and movement functions.
  • Fear: Excessive feelings of fear.
  • Fecal incontinence: The loss of control of a persons bowel motions
  • Feeling as if the world is revolving around you: sense of swaying while the body is stationary with respect to the surroundings.
  • Feeling futile: serving no useful purpose
  • Feeling of apprehension: anxiety is a feeling of apprehension or fear
  • Feeling of impending doom: it is a feeling of approaching end or death
  • Felon:
  • Fentanyl toxicity: The toxic reaction of the body to the substance, possibly via allergic reaction or overdose.
  • Ferlini-Ragno-Calzolari syndrome: A rare syndrome reported in only a few families and characterized by skeletal problems, excessive fluid inside the skull and neurological problems.
  • Fetal alcohol syndrome: A condition which occurs in a new born fetus and is caused by the mother consuming excess alcohol during her pregnancy
  • Fetterbush poisoning: Fetterbush is an evergreen shrub which bears elongated spikes of small, urn-shaped flowers. The plant is found mainly in the US. The leaves and flower nectar contain andromedotoxin which is very poisonous if eaten. Severe poisoning can result in death.
  • Flea-borne diseases: Diseases that are carried by fleas
  • Florida leucothoe poisoning: The Florida leucothoe is a shrubby plant often grown in gardens. The leaves contain andromedotoxin which can cause serious symptoms if eaten. The plant is considered very poisonous and can result in death if sufficient quantities of leaves are consumed.
  • Food Additive Adverse reaction -- chocolate: An intolerance to chocolate is an adverse reaction (not an immune response) by the body to chocolate. The adverse reaction results from the body's inability to metabolize the food. The amount of chocolate required to trigger the onset of symptoms and the nature and severity of symptoms may vary considerably between patients.
  • Food Additive Adverse reaction -- sulphite: An intolerance to sulphite is an adverse reaction (not an immune response) by the body to sulphite. The adverse reaction results from the body's inability to metabolize the substance. The amount of sulphite required to trigger the onset of symptoms and the nature and severity of symptoms may vary considerably between patients.
  • Food Allergy -- beef: A beef allergy is an adverse reaction by the body's immune system to beef. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- buckwheat: A buckwheat allergy is an adverse reaction by the body's immune system to buckwheat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- chicken meat: A chicken meat allergy is an adverse reaction by the body's immune system to chicken meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- duck meat: A duck meat allergy is an adverse reaction by the body's immune system to duck meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- goose meat: A goose meat allergy is an adverse reaction by the body's immune system to goose meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- lamb: A lamb allergy is an adverse reaction by the body's immune system to lamb meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- meat: A meat allergy is an adverse reaction by the body's immune system to meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- pork: A pork allergy is an adverse reaction by the body's immune system to meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food Allergy -- red meat: A red meat allergy is an adverse reaction by the body's immune system to red meat. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
  • Food addiction: Food addiction refers to compulsive eating that is unrelated to actual hunger. The person feels compelled to eat even when they aren't hungry. Although it is not considered a recognised addiction it can have a significant impact on a person's life and health. Food addicts often have underlying emotional problems.
  • Four-O'Clock poisoning: The Four-O'Clock plant is a popular flowering ornamental plant which often has different colored flowers on the same plant. The roots and seeds of the plant contains a toxin called trigonelline which can cause skin irritation upon contact with the skin or gastrointestinal symptoms if eaten. The seeds may produce a hallucinogenic effects if smoked or eaten.
  • Foxglove poisoning: The foxglove is a herb which produces fruit in a capsule and colored, tubular flowers. The leaves, flowers and seeds of the plant contain a very toxic chemical called digitalis glycoside which can cause serious symptoms or even death if eaten. Skin irritation can occur if contact with the skin occurs. NOTE: Patients who are taking certain medications (digoxin, beta-blockers, calcium channel blockers) are more susceptible to foxglove poisoning.
  • Fretfulness: sense of being easily irritable.
  • Frontotemporal dementia: A degenerative brain disease involving frontal and temporal brain lobes resulting in dementia. Degeneration of the frontal lobe causes behavioral and personality changes degeneration of the temporal lobe causes semantic dementia.
  • Functioning pancreatic endocrine tumor: Tumors that develop in the pancreas and cause excessive secretion of one or more pancreatic hormones such as insulin, somatostatin, glucagons, gastrin, ACTH (corticosteroids) and vasoactive intestinal peptidase.
  • Gambling addiction: Addiction to gambling activities.
  • Gaming addiction: Gaming addiction refers to the excessive amounts of time spent on online computer games. When the person attempts to reduce the amount of time spent on the activity they suffer withdrawal symptoms such as irritability and anxiety. The preoccupation can cause problems with relationships and even with work performance.
  • Gangrene: Death (necrosis) of a portion of tissue or entire organ due to decreased perfusion with blood or infectious destruction of tissue.
  • Gastroenteritis: An infection of the bowel
  • Gaucher disease -- perinatal lethal form: A rare syndrome characterized by the association of abnormally tight skin and Gaucher disease which is a lipid storage disease. This is the most severe form of Gaucher disease.

Conditions listing medical symptoms: Psychiatric symptom:

The following list of conditions have 'Psychiatric symptom' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

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Conditions listing medical complications: Psychiatric symptom:

The following list of medical conditions have 'Psychiatric symptom' or similar listed as a medical complication in our database.

 

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