Chorea is a movement disorder that causes involuntary, unpredictable body movements. Symptoms may include fidgeting to severe uncontrolled arm and leg movements. Chorea is a movement disorder that ...

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 ...

Chorea and hemiballismus are both forms of involuntary movement disorders. Hemiballismus can cause sudden, violent, and flinging motions. Chorea can cause irregular, spontaneous, and nonrepetitive ...