- Cognitive impairment:
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Parental fears about toddler behavior often unfounded: There are many behaviors in infants and toddlers that may give rise to a fear that the child has some form of mental health condition. In particular, there is a loss of fear of autism or ADHD in parents. However, parents should understand that the chances are higher that it's part of normal development, and perhaps just a "cute behavior" rather than a serious condition. Although parents should be vigilant about monitoring all aspects of their child's development and mental health, they should also take care not to over-worry and miss out on some of the delights of parenthood. For example, a young child that screams when you open his car door to take him out, then makes you put him back into the car to repeat it, so that he can open the car door himself, is not necessarily showing signs of autism or OCD, nor indeed any mental illness. There is a small possibility that it's an abnormality (a chance that increases with age of the child), but it's also the type of behavior seen in many normal children. See the introduction to autism and introduction to ADHD.
Undiagnosed stroke leads to misdiagnosed aphasia: BBC News UK reported on a man who had been institutionalized and treated for mental illness because he suffered from sudden inability to speak. This was initially misdiagnosed as a "nervous breakdown" and other mental conditions. He was later diagnosed as having had a stroke, and suffering from aphasia (inability to speak), a well-known complication of stroke (or other brain conditions).
Dementia may be a drug interaction: A common scenario in aged care is for a patient to show mental decline to dementia. Whereas this can, of course, occur due to various medical conditions, such as a stroke or Alzheimer's disease, it can also occur from a side effect or interaction between multiple drugs that the elderly patient may be taking. There are also various other possible causes of dementia.
Mild traumatic brain injury often remains undiagnosed: Although the symptoms of severe brain injury are hard to miss, it is less clear for milder injuries, or even those causing a mild concussion diagnosis. The condition goes by the name of "mild traumatic brain injury" (MTBI). MTBI symptoms can be mild, and can continue for days or weeks after the injury. See the symptoms of MTBI or misdiagnosis of MTBI.
ADHD under-diagnosed in adults: Although the over-diagnoses of ADHD in children is a well-known controversy, the reverse side related to adults. Some adults can remain undiagnosed, and indeed the condition has usually been overlooked throughout childhood. There are as many as 8 million adults with ADHD in the USA (about 1 in 25 adults in the USA). See misdiagnosis of ADHD or symptoms of ADHD.
MTBI misdiagnosed as balance problem: When a person has symptoms such as vertigo or dizziness, a diagnosis of brain injury may go overlooked. This is particularly true of mild traumatic brain injury (MTBI), for which the symptoms are typically mild. The symptoms has also relate to a relatively mild brain injury (e.g. fall), that could have occurred days or even weeks ago. Vestibular dysfunction, causing vertigo-like symptoms, is a common complication of mild brain injury. See causes of dizziness, causes of vertigo, or misdiagnosis of MTBI.
Bipolar disorder misdiagosed as various conditions by primary physicians: Bipolar disorder (manic-depressive disorder) often fails to be diagnosed correctly by primary care physicians. Many patients with bipolar seek help from their physician, rather than a psychiatrist or psychologist. See misdiagnosis of bipolar disorder.
Eating disorders under-diagnosed in men: The typical patient with an eating disorder is female. The result is that men with eating disorders often fail to be diagnosed or have a delayed diagnosis. See misdiagnosis of eating disorders or symptoms of eating disorders.
Depression undiagnosed in teenagers: Serious bouts of depression can be undiagnosed in teenagers. The "normal" moodiness of teenagers can cause severe medical depression to be overlooked. See misdiagnosis of depression or symptoms of depression.
Brain pressure condition often misdiagnosed as dementia: A condition that results from an excessive pressure of CSF within the brain is often misdiagnosed. It may be misdiagnosed as Parkinson's disease or dementia (such as Alzheimer's disease). The condition is called "Normal Pressure Hydrocephalus" (NPH) and is caused by having too much CSF, i.e. too much "fluid on the brain". One study suggested that 1 in 20 diagnoses of dementia or Parkinson's disease were actually NPH. See misdiagnosis of Alzheimer's disease or misdiagnosis of Parkinson's disease.
Post-concussive brain injury often misdiagnosed: A study found that soldiers who had suffered a concussive injury in battle often were misdiagnosed on their return. A variety of symptoms can occur in post-concussion syndrome and these were not being correctly attributed to their concussion injury. See introduction to concussion.
Children with migraine often misdiagnosed: A migraine often fails to be correctly diagnosed in pediatric patients. These patients are not the typical migraine sufferers, but migraines can also occur in children. See misdiagnosis of migraine or introduction to migraine.
Undiagnosed anxiety disorders related to depression: Patients with depression (see symptoms of depression) may also have undiagnosed anxiety disorders (see symptoms of anxiety disorders). Failure to diagnose these anxiety disorders may worsen the depression. See misdiagnosis of depression or misdiagnosis of anxiety disorders.
Vitamin B12 deficiency under-diagnosed: The condition of Vitamin B12 deficiency is a possible misdiagnosis of various conditions, such as multiple sclerosis (see symptoms of multiple sclerosis). See symptoms of Vitamin B12 deficiency or misdiagnosis of multiple sclerosis.
Some of the causes, which may potentially be dangerous or fatal if left undiagnosed, may include:
The following list of conditions have 'Cognitive impairment' 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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The following list of medical conditions have 'Cognitive impairment'
or similar listed as a medical complication in our database.
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