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What are the various types of Tremors?

By  ,  National Institute of Health
Jan 13, 2013
4.8 / 5(4 Ratings)

Tremor is most commonly classified by clinical features and cause or origin.  Some of the better known forms of tremor, with their symptoms, include the following:


Essential tremor (sometimes called benign essential tremor) is the most common of the more than 20 types of tremor.  Although the tremor may be mild and nonprogressive in some people, in others, the tremor is slowly progressive, starting on one side of the body but affecting both sides within 3 years.   The hands are most often affected but the head, voice, tongue, legs, and trunk may also be involved.  Head tremor may be seen as a “yes-yes” or “no-no” motion.  Essential tremor may be accompanied by mild gait disturbance.  Tremor frequency may decrease as the person ages, but the severity may increase, affecting the person’s ability to perform certain tasks or activities of daily living.  Heightened emotion, stress, fever, physical exhaustion, or low blood sugar may trigger tremors and/or increase their severity.  Onset is most common after age 40, although symptoms can appear at any age.  It may occur in more than one family member.  Children of a parent who has essential tremor have a 50 percent chance of inheriting the condition.  Essential tremor is not associated with any known pathology.


Parkinsonian tremor is caused by damage to structures within the brain that control movement.  This resting tremor, which can occur as an isolated symptom or be seen in other disorders, is often a precursor to Parkinson’s disease (more than 25 percent of patients with Parkinson’s disease have an associated action tremor).  The tremor, which is classically seen as a “pill-rolling” action of the hands that may also affect the chin, lips, legs, and trunk, can be markedly increased by stress or emotions.  Onset of parkinsonian tremor is generally after age 60.  Movement starts in one limb or on one side of the body and usually progresses to include the other side.


Dystonic tremor occurs in individuals of all ages who are affected by dystonia, a movement disorder in which sustained involuntary muscle contractions cause twisting and repetitive motions and/or painful and abnormal postures or positions.  Dystonic tremor may affect any muscle in the body and is seen most often when the patient is in a certain position or moves a certain way.  The pattern of dystonic tremor may differ from essential tremor.  Dystonic tremors occur irregularly and often can be relieved by complete rest.  Touching the affected body part or muscle may reduce tremor severity.  The tremor may be the initial sign of dystonia localized to a particular part of the body.


Cerebellar tremor is a slow, broad tremor of the extremities that occurs at the end of a purposeful movement, such as trying to press a button or touching a finger to the tip of one’s nose.  Cerebellar tremor is caused by lesions in or damage to the cerebellum resulting from stroke, tumor, or disease such as multiple sclerosis or some inherited degenerative disorder.  It can also result from chronic alcoholism or overuse of some medicines.  In classic cerebellar tremor, a lesion on one side of the brain produces a tremor in that same side of the body that worsens with directed movement.  Cerebellar damage can also produce a “wing-beating” type of tremor called rubral or Holmes’ tremor — a combination of rest, action, and postural tremors.  The tremor is often most prominent when the affected person is active or is maintaining a particular postur...

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