Medical Definition of Essential tremor

Essential tremor: Uncontrollable shaking (tremor) of the hands and arms and sometimes other parts of the body. Essential tremor is the most common of all movement disorders and is estimated to affect up to 5% of people in the US. In approximately half of cases, essential tremor is inherited in an autosomal dominant manner. Several different genetic defects may play a role in this condition. The degree of severity of symptoms is variable among affected people. It most often affects the hands and arms but may also involve the legs, trunk, head, voice, and chin.

Also known as familial tremor, heredofamilial tremor, and hereditary essential tremor. See: ETM1ETM2.

Quick GuideDementia, Alzheimer's Disease, and Aging Brains

Dementia, Alzheimer's Disease, and Aging Brains

Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Last Editorial Review: 6/9/2016

Health Solutions From Our Sponsors