Q: My cousin was diagnosed with dystonia, what is this? A: Dystonia is a disorder of involuntary muscle contractions that may cause repetitive and/or abnormal movement or postures, for example ...

Chorea-acanthocytosis is a rare genetic disorder of the nervous system. It causes involuntary jerks and twitches in the muscles, known as chorea, and star-shaped red blood cells, known as ...

Dyskinesia refers to uncontrolled, involuntary muscle movements ranging from shakes, tics and tremors to full-body movements. It can happen with various neurological conditions. Another type of ...

Dystonia is a neurological disorder causing involuntary muscle contractions and abnormal postures. Botulinum toxin (e.g., Botox) is the gold-standard, first-line treatment for focal dystonias, which ...

Athetosis refers to the slow, involuntary, and writhing movements of the limbs, face, neck, tongue, and other muscle groups. The fingers are also affected, with their flexing happening separately and ...

Extrapyramidal symptoms, also called drug induced movement disorders, describe the side effects caused by certain antipsychotic and other drugs. Extrapyramidal symptoms, also called drug-induced ...

DEAR DR. ROACH: For about the past year, I have had mouth movements that I do not intend to make. I can stop them if I really concentrate on doing so, but as soon as I think of something else, they ...

Researchers uncovered new findings about involuntary muscle movements that come with long-term administration of Parkinson's drug levodopa. University of Arizona researchers have revealed new insights ...

Chattering teeth – that rapid, sometimes noisy clack of your upper and lower teeth – is a minor, startling symptom that can ...