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The following medical conditions are some of the possible
causes of Myoclonus.
There are likely to be other possible causes, so ask your doctor
about your symptoms.
Home medical tests possibly related to Myoclonus:
Review causes of types of Myoclonus in more specific categories:
Listed below are some combinations of symptoms associated with Myoclonus, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition.
Some of the possible treatments listed in sources for treatment of Myoclonus may include:
Review further information on Myoclonus Treatments.
When combined, certain drugs, medications, substances or toxins may react causing Myoclonus 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.
Some of the comorbid or associated medical symptoms for Myoclonus may include these symptoms:
Research the causes of these more general types of symptom:
Research the causes of these symptoms that are similar to, or related to, the symptom Myoclonus:
Read more about causes and Myoclonus deaths.
Epilepsy misdiagnosed as schizophrenia: The book "Preventing Misdiagnosis of Women" reports on a case of a woman diagnosed with schizophrenia, but later diagnosed with a form of epilepsy called "temporal lobe epilepsy". 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...read more »
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...read more »
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Conditions that are commonly undiagnosed in related areas may include:
Other medical conditions listed in the Disease Database as possible
causes of Myoclonus as a symptom include:
Myoclonus is a term that refers to brief, involuntary twitching of a muscle or a group of muscles. It describes a symptom and, generally, is not a diagnosis of a disease. (Source: excerpt from NINDS Myoclonus Information Page: NINDS)
Myoclonus describes a symptom and generally is not a diagnosis of a disease. It refers to sudden, involuntary jerking of a muscle or group of muscles. Myoclonic twitches or jerks usually are caused by sudden muscle contractions, called positive myoclonus, or by muscle relaxation, called negative myoclonus. Myoclonic jerks may occur alone or in sequence, in a pattern or without pattern. They may occur infrequently or many times each minute. Myoclonus sometimes occurs in response to an external event or when a person attempts to make a movement. The twitching cannot be controlled by the person experiencing it. (Source: excerpt from Myoclonus Fact Sheet: NINDS)
Myoclonus is a term that refers to brief, involuntary twitching of a muscle or a group of ... (Source: excerpt from NINDS Myoclonus Information Page: NINDS)
Myoclonus describes a symptom and generally is not a diagnosis of a disease. It... (Source: excerpt from Myoclonus Fact Sheet: NINDS)
Involuntary shock-like contractions, irregular in rhythm and amplitude, followed by relaxation, of a muscle or a group of muscles. This condition may be a feature of some CENTRAL NERVOUS SYSTEMS DISEASES (e.g., EPILEPSY, MYOCLONIC). Nocturnal myoclonus may represent a normal physiologic event or occur as the principal feature of the NOCTURNAL MYOCLONUS SYNDROME. (From Adams et al., Principles of Neurology, 6th ed, pp102-3).
- (Source - Diseases Database)
A clonic spasm of a muscle or muscle group
- (Source - WordNet 2.1)
Shock-like contraction of a portion of a muscle, an entire muscle, or a group of muscles; may be part of a disease process or a normal physiological response.
- (Source - CRISP)
Myoclonus is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Myoclonus, or a subtype of Myoclonus,
affects less than 200,000 people in the US population.
- (Source - National Institute of Health)
The list below shows some of the causes of Myoclonus mentioned in various sources:
This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Myoclonus. Of the 149 causes of Myoclonus that we have listed, we have the following prevalence/incidence information:
The following list of conditions have 'Myoclonus' 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 Myoclonus or choose View All.
The following list of medical conditions have Myoclonus 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.
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This information shows analysis of the list of causes of Myoclonus based
on whether certain risk factors apply to the patient:
Medical Conditions associated with Myoclonus:
Spasms (2183 causes), Movement symptoms (6001 causes), Muscle symptoms (7251 causes), Musculoskeletal symptoms (6264 causes), Nerve symptoms (9132 causes), Neurological symptoms (9575 causes), Reflex symptoms (469 causes), Brain symptoms (2787 causes), Head symptoms (10192 causes), Autonomic nerve symptoms (345 causes), Tendon symptoms (412 causes)
Symptoms related to Myoclonus:
Alzheimer's disease (2 causes), Creutzfeldt-Jakob disease, Encephalitis (137 causes), Encephalopathy (185 causes), Epilepsy (132 causes), Drug withdrawal, Poisoning, Meningitis (160 causes), Reye's syndrome (10 causes), Viral encephalitis, Delirium tremens (2 causes)
Doctor-patient articles related to symptoms and diagnosis:
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