Lethargy
Lethargy: Introduction
Lethargy is a fairly imprecise description of the feeling
or slowness, sluggishness, tiredness, or lack of energy.
Lethargy in common usage may mean many things,
including fatigue, drowsiness (sleepiness), lethargy, tiredness, malaise, listlessness, or weakness (including muscular weakness).
The causes of these other similar symptoms also need to be investigated in researching
a symptom of lethargy.
Nevertheless, any type of lethargy symptom can indicate a serious medical condition
and needs prompt medical investigation....more »
» Review Causes of Lethargy:
Causes | Symptom Checker » | Assessment Questionnaire »
Causes of Lethargy:
The following medical conditions are some of the possible
causes of Lethargy.
There are likely to be other possible causes, so ask your doctor
about your symptoms.
See full list of 399
causes of Lethargy
» Review Causes of Lethargy:
Causes | Symptom Checker » | Assessment Questionnaire »
Common Causes of Lethargy
Home Diagnostic Testing and Lethargy
Home medical tests possibly related to Lethargy:
Causes of Types of Lethargy:
Review causes of types of Lethargy in more specific categories:
Review causes of more specific types of Lethargy:
See full list of 6
types for Lethargy
Lethargy: Symptom Checker
Listed below are some combinations of symptoms associated with Lethargy, as listed in our database.
Visit the Symptom Checker,
to add and remove symptoms and research your condition.
Symptom Checker
Symptom Checker
See full list of 501
Symptom Checkers for Lethargy
Lethargy Treatments
Some of the possible treatments listed in sources for treatment of Lethargy may include:
Review further information on Lethargy Treatments.
Stories from Users for Lethargy
Real-life user stories relating to Lethargy:
Message Boards for Lethargy
Symptom specific forums:
The following patient stories in our interactive forums and message boards
relate to Lethargy or relevant symptoms:
Diagnostic tests for Lethargy:
Various tests are used in the diagnosis of Lethargy. Some of these are listed below :
- Tests should be selected judiciously
- Physical examination
- Blood pressure taken when lying down and again after rapidly arising to standing position ( looking for postural hypotension of Addison's disease)
- Feel lymph nodes for enlargement
- Abdominal examination looking for an enlarged liver or spleen
- Full nervous system examination - If abnormalities are found may suggest muscular dystrophy, motor neurone disease or Parkinson's disease, Multiple sclerosis.
- Examine for mild signs of chronic fatigue syndrome - including muscle tenderness, mild red pharynx and tender slightly enlarged neck lymph nodes.
- more tests...»
See full list of 47
diagnostic tests for Lethargy
Lethargy: Animations
More Lethargy animations & videos
Medications or substances causing Lethargy:
The following drugs, medications, substances or toxins are some of the possible
causes of Lethargy as a symptom.
Always advise your doctor of any medications or treatments you are using,
including prescription, over-the-counter, supplements, herbal or alternative treatments.
See full list of 146
medications causing Lethargy
Drug interactions causing Lethargy:
When combined, certain drugs, medications, substances or toxins may react
causing Lethargy as a symptom.
Always advise your doctor of any medications or treatments you are using,
including prescription, over-the-counter, supplements, herbal or alternative treatments.
- Acyclovir and Zovirax interaction
- Trizivir and acyclovir interaction
- Lanoxin (Digoxin) and Cardioquin (Quinidine) interaction
- Lanoxin (Digoxin) and Quinaglute (Quinidine) interaction
- Lanoxin (Digoxin) and Quinidex (Quinidine) interaction
- Lanoxin (Digoxin) and Quinora (Quinidine) interaction
- Adalat (Nifedipine) and Cardioquin (Quinidine) interaction
- more interactions...»
See full list of 375
drug interactions causing Lethargy
Lethargy: Comorbid Symptoms
Some of the comorbid or associated medical symptoms
for Lethargy may include these symptoms:
See all associated comorbid symptoms for Lethargy
Causes of General Symptom Types
Research the causes of these more general types of symptom:
Causes of Similar Symptoms to Lethargy
Research the causes of these symptoms that are similar to, or related to, the symptom Lethargy:
Assessment Questionnaire: Questions your doctor may ask (and why!)
During a consultation, your doctor will use various techniques to assess the
symptom: Lethargy. These will include a physical examination and possibly diagnostic
tests. (Note: A physical exam is always done, diagnostic tests may or may not
be performed depending on the suspected condition)
Your doctor will ask several questions when assessing your condition. It is
important to openly share any pertinent information to help your doctor make an
accurate diagnosis.
It is also very important to bring an up-to-date list of all of your all
medical conditions, medications including dosages, and names of numbers of any
specialist you see.
Create your printable checklist here.
See Lethargy Assessment Questionnaire (32
listings)
Lethargy: Deaths
Read more about causes and Lethargy deaths.
Misdiagnosis and Lethargy
Cluster of diseases with difficult diagnosis issues: There is a well-known list of
medical conditions that are all somewhat difficult to diagnose, and all can present
in a...read more »
RLS sleep disorder causing night-time leg sensations often misdiagnosed: A common but relatively unknown
sleep-related disorder called Restless Leg Syndrome (RLS) is often misdiagnosed.
The typical symptoms are night-time tingling, crawling, or burning...read more »
Pituitary conditions often undiagnosed cause of symptoms: There are a variety of symptoms
that can be caused by a pituitary disorder (see symptoms of pituitary disorders).
For example, fatigue, headache, weight...read more »
Read more about Misdiagnosis and Lethargy
Lethargy: Research Related Doctors & Specialists
Other ways to find a doctor, or use doctor, physician and specialist online research services:
Lethargy: Undiagnosed Conditions
Conditions that are commonly undiagnosed in related areas may include:
Organs affected by Lethargy:
The list of organs typically affected by Lethargy may include, but is not limited to:
Detailed list of causes of Lethargy
The list below shows some of the causes of Lethargy mentioned in various sources:
See full list of 399
causes of Lethargy
How Common are these Causes of Lethargy?
This information refers to the general prevalence and incidence of these diseases,
not to how likely they are to be the actual cause of Lethargy.
Of the 399
causes of Lethargy that
we have listed, we have the following prevalence/incidence information:
- 9
causes are "very common" diseases
- 8
causes are "common" diseases
- 4
causes are "uncommon" diseases
- 0
causes are "rare" diseases
- 18
causes are "very rare" diseases
- 381
causes have no prevalence information.
See the analysis of the prevalence of 399
causes of Lethargy
Conditions listing medical symptoms: Lethargy:
The following list of conditions
have 'Lethargy' 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.
Select from the following alphabetical view of conditions which
include a symptom of Lethargy or choose View All.
Symbols
A
- Achalasia -- adrenal -- alacrima syndrome
... lethargy
- Acid-Base Imbalance
... lethargy
- Acidemia, methylmalonic
... lethargy
- Acidemia, propionic
... lethargy
- Acquired hypothyroidism
... lethargy, sluggishness
- Acquired idiopathic sideroblastic anaemia
... lethargy
- Acquired Pure Red Cell Aplasia
... lethargy
- Actinomycetales infection
... lethargy
- Acute Disseminated Encephalomyelitis
... lethargy
- Acute kidney failure
... lethargy
- Acute meningitis
... Lethargy
- Acute myeloid leukemia
... Lethargy
- Acute non lymphoblastic leukemia
... lethargy
- Acyl-CoA dehydrogenase, short chain, deficiency of
... lethargy
- Acyl-CoA dehydrogenase, very long chain, deficiency of
... lethargy
- Addison's Disease
... lethargy
- Adenocarcinoma of lung
... lethargy
- Adenocarcinoma, Bronchiolo-Alveolar
... lethargy
- Adrenal hyperplasia, congenital type 3
... lethargy
- African Sleeping sickness
... lethargy
- Albright's hereditary osteodystrophy
... lethargy
- Amotivational syndrome
... lethargy
- Anemia, Iron-Deficiency
... lethargy
- Anemia, Neonatal
... lethargy
- Anemia, Refractory, with Excess of Blasts
... lethargy
- Anemia, Refractory, with Excess of Blasts, type 1
... lethargy
- Anemia, Refractory, with Excess of Blasts, type 2
... lethargy
- Aneurysm, intracranial berry
... lethargy
- Aneurysm, intracranial berry, 1
... lethargy
- Aneurysm, intracranial berry, 10
... lethargy
- Aneurysm, intracranial berry, 2
... lethargy
- Aneurysm, intracranial berry, 3
... lethargy
- Aneurysm, intracranial berry, 4
... lethargy
- Aneurysm, intracranial berry, 5
... lethargy
- Aneurysm, intracranial berry, 6
... lethargy
- Aneurysm, intracranial berry, 7
... lethargy
- Aneurysm, intracranial berry, 8
... lethargy
- Aneurysm, intracranial berry, 9
... lethargy
- Aneurysmal subarachnoid haemorrhage
... lethargy
- Angiofollicular lymph hyperplasia
... lethargy
- Antidiarrheal agent poisoning
... lethargy
- Aplastic anemia
... lethargy
- Apricot seed poisoning
... lethargy
- Argininosuccinase lyase deficiency, late onset
... lethargy
- Argininosuccinase lyase deficiency, neonatal
... lethargy
- Atypical hemolytic uremic syndrome
... lethargy
- Autoimmune thyroid diseases
... sluggishness
B
C
D
E
F
G
H
- HADH deficiency
... lethargy
- Helicobacter cinaedi infection
... lethargy
- Helicobacter fenneliae infection
... lethargy
- Hemolytic Uremic Syndrome, Atypical, Susceptibility to, 1
... lethargy
- Hemolytic Uremic Syndrome, Atypical, Susceptibility to, 2
... lethargy
- Hemolytic Uremic Syndrome, Atypical, Susceptibility to, 3
... lethargy
- Hemolytic Uremic Syndrome, Atypical, Susceptibility to, 4
... lethargy
- Hemolytic Uremic Syndrome, Atypical, Susceptibility to, 5
... lethargy
- Hemolytic Uremic Syndrome, Atypical, Susceptibility to, 6
... lethargy
- Hemosiderosis
... lethargy
- Hepatic amyloidosis with intrahepatic cholestasis
... lethargy
- Hepatic encephalopathy syndrome
... lethargy
- Hepatitis
... lethargy
- Hepatitis X (non-A,-B,-C,-D,-E)
... lethargy
- Hepatorenal tyrosinemia
... lethargy
- Herbal Agent adverse reaction -- Licorice
... lethargy
- Herbal Agent adverse reaction -- Margosa oil
... lethargy
- Herbal Agent adverse reaction -- Passion Flower
... lethargy
- Herbal Agent overdose -- Melaleuca Oil
... lethargy
- Herbal Agent overdose -- Peppermint Oil
... lethargy
- Herbal Agent overdose -- Valerian
... lethargy
- Hereditary spherocytic hemolytic anemia
... lethargy
- Herpes, Neonatal
... lethargy
- HMG-CoA lyase deficiency
... lethargy
- Hobo spider poisoning
... lethargy
- Holocarboxylase synthetase deficiency
... lethargy
- Hyacinth bean poisoning
... lethargy
- Hydrocephalus
... lethargy
- Hyperglycinemia
... lethargy
- Hypernatraemia
... lethargy
- Hypernatremia
... lethargy
- Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome
... lethargy
- Hyperreninemic Hypoaldosteronism, Familial 2
... lethargy
- Hypertension in children under one year
... lethargy
- Hypervitaminoses A and D
... lethargy
- Hypoaldosteronism, familial
... lethargy
- Hypopituitarism
... Lethargy
- Hypoplastic Left Heart Syndrome
... lethargy
- Hypothyroidism
... sluggishness
- Hypothyroidism due to iodide transport defect
... lethargy
I
J
K
L
M
- M/SCHAD deficiency
... lethargy
- Malignant germ cell tumor
... lethargy
- Maple syrup urine disease
... lethargy
- Maple syrup urine disease, type 1A
... lethargy
- Maple syrup urine disease, type 1B
... lethargy
- Maple syrup urine disease, type 2
... Lethargy
- Maple syrup urine disease, type 3
... Lethargy
- Maple syrup urine disease, type II
... lethargy
- Maple syrup urine disease, type III
... lethargy
- Marasmus
... Lethargy
- Marijuana amotivational syndrome
... lethargy
- Marine turtle poisoning
... lethargy
- Marine turtle poisoning -- Green Sea Turtle
... lethargy
- Marine turtle poisoning -- Hawksbill Turtle
... lethargy
- Marine turtle poisoning -- Leatherback Turtle
... lethargy
- Marine turtle poisoning -- Loggerhead Turtle
... lethargy
- Marine turtle poisoning -- Soft-shelled Turtle
... lethargy
- Medium and long chan 3-hydroxyacyl-coenzyme A dehydrogenase deficiency
... lethargy
- Medium and short chain 3-hydroxyacyl-CoA dehydrogenase deficiency
... lethargy
- Medium-Chain Acyl-CoA Dehydrogenase Deficiency
... lethargy
- Medulloblastoma
... lethargy
- Meningitis
... lethargy
- Meningococcal disease
... lethargy
- Menopause
... lethargy
- Metabolic encephalopathy
... lethargy
- Metastatic nervous system cancer
... Lethargy
- Methylmalonic acidemia
... Lethargy
- Methylmalonic acidemia -- homocystinuria
... lethargy
- Methylmalonic acidemia, cobalamin A deficiency
... lethargy
- Methylmalonic acidemia, Cobalamin B deficiency
... lethargy
- Methylmalonic acidemia, Methylmalonyl CoA mutase deficiency
... lethargy
- Methylmalonic acidemia, methylmalonyl CoA racemase deficiency
... lethargy
- Methylmalonic acidemia, vitamin B12 responsive
... lethargy
- Methylmalonicaciduria, vitamin B12 unresponsive, mut 0
... lethargy
- Mitochondrial trifunctional protein deficiency
... lethargy
- Mohave Rattle snake poisoning
... lethargy
- Mountain sickness
... lethargy
- Mucormycosis
... lethargy
- Multiple endocrine neoplasia
... Lethargy
- Multiple endocrine neoplasia type 1
... Lethargy
- Multiple endocrine neoplasia type 2
... Lethargy
- Multiple endocrine neoplasia type 3
... Lethargy
- Mycobacterial infections
... Lethargy
- Myxedema
... lethargy
N
- N-acetyl glutamate synthetase deficiency
... lethargy
- Necrotizing enterocolitis
... lethargy
- Neonatal bacterial meningitis
... lethargy
- Neuroblastoma
... lethargy
- Neuroblastoma, Susceptibility to
... lethargy
- Neuroblastoma, Susceptibility to, 1
... lethargy
- Neuroblastoma, Susceptibility to, 2
... lethargy
- Neuroblastoma, Susceptibility to, 3
... lethargy
- Neuroblastoma, Susceptibility to, 4
... lethargy
- Neuroblastoma, Susceptibility to, 5
... lethargy
- Neuroblastoma, Susceptibility to, 6
... lethargy
- Neuroectodermal tumor, primitive
... lethargy
- Neuroectodermal tumors primitive
... lethargy
- Nocardiosis
... lethargy
- Non-diarrheal (D-) HUS syndrome
... lethargy
O
P
R
S
T
U
V
W
Y
Z
Conditions listing medical complications: Lethargy:
The following list of medical conditions have
Lethargy or similar
listed as a medical complication in our database.
The distinction between a symptom and complication is not always clear,
and conditions mentioning this symptom as a complication may also be relevant.
This computer-generated list may be inaccurate or incomplete.
Always seek prompt professional medical advice about the cause
of any symptom.
C
N
Join in at the forums
Ask or answer a question about symptoms or diseases at one of our
free interactive user forums.
Medical story forums: If you have a medical story then we want to hear it.
See a list of all the medical forums
Causes of Lethargy Based on Risk Factors
This information shows analysis of the list of causes of Lethargy based
on whether certain risk factors apply to the patient:
Travel - has the patient travelled recently?
Diabetes - history of diabetes or family history of diabetes?
Doctors and specialists: Who should I consult about Lethargy?
Depending on the seriousness of the onset of Lethargy, you may want to consult one of the following medical professionals.
Important:In extreme cases, always seek advice from emergency services :
Classifications of Lethargy:
Medical Conditions associated with Lethargy:
Fatigue (3235 causes), Muscle weakness (4300 causes), Common symptoms (8589 causes), Sick (5751 causes), Fatigue symptoms (3235 causes), Energy symptoms (3108 causes), Pain (6458 causes), Movement symptoms (6001 causes), Weakness (3752 causes), Sensations (6520 causes), Brain symptoms (2787 causes), Neurological symptoms (9575 causes), Sensory symptoms (7134 causes), Muscle symptoms (7251 causes), Nerve symptoms (9132 causes), Musculoskeletal symptoms (6264 causes), Body symptoms (5672 causes), Head symptoms (10192 causes)
Symptoms related to Lethargy:
Fatigue (3235 causes), Malaise (468 causes), Drowsiness (1139 causes), Prostration (65 causes), Listlessness (33 causes), Weakness (3752 causes), Tired (669 causes), Sleepiness (1139 causes), Insomnia (521 causes), Chronic fatigue syndrome (3 causes), Depression (629 causes), Dementia (394 causes), Renal failure (115 causes), Cirrhosis of liver (119 causes), Temporal lobe abscess, Alzheimer's disease (2 causes), Cocaine abuse (2 causes), Carbon monoxide poisoning, Huntington's disease (2 causes)
Medical articles on signs and symptoms:
Doctor-patient articles related to symptoms and diagnosis:
These general medical articles may be of interest:
See full list of premium articles on symptoms and diagnosis
Medical News summaries about Lethargy
Our news pages contain the following medical news summaries about Lethargy and many other medical conditions:
More Ways To Research Medical Signs and Symptoms:
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