Signs and Symptoms of Movement Disorders

Signs and symptoms of movement disorders vary and depend on the type and severity of the condition. The severity of movement disorder symptoms can be affected by factors such as anxiety, fatigue, medication, and stress.

Some movement disorders cause hyperkinesia—excessive spontaneous movement or abnormal involuntary movement—and others cause hypokinesia—absent or reduced ability to perform purposeful movement.

Abnormal movements may be rhythmical (e.g., essential tremor) or irregular, and may be rapid and jerky (e.g., tics) or slowed and sustained (e.g., Parkinson's disease, dystonia). In most cases, irregular movement cannot be consciously controlled or suppressed.

Publication Review By: Stanley J. Swierzewski, III, M.D.

Published: 01 Jan 2000

Last Modified: 25 Sep 2015