Tremor

Injury	Disease	Nutrition	Poison

Symptoms	Surgery	Test	Special Topic

Overview

Symptoms

Treatment

Prevention

Tremor

Definition:

Tremors are a type of involuntary shaking movement.

Causes, incidence, and risk factors:

Tremors are caused by problems with the nerves supplying certain muscles. They may affect the whole body or just certain areas, as with hand tremor).

Disorders with tremor as the primary symptom include:

Familial tremor (runs in families)
Essential tremor (no known cause)
Drug-induced tremor (drugs known to induce tremor include valproic acid, lithium, and cyclosporine)

Parkinson's disease and other illnesses may cause tremors in addition to other symptoms. Certain medical problems such as hyperthyroidism or Wilson's disease may cause tremors.

Review Date: 8/16/2004
Reviewed By: Joseph V. Campellone, M.D., Division of Neurology, Cooper University Hospital, Camden, NJ. Review provided by VeriMed Healthcare Network.

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