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.


Last Editorial Review: 10/8/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.


STAY INFORMED

Get the Latest health and medical information delivered direct to your inbox!