Shaking or Tremor

General or Other | - Others | Shaking or Tremor (Symptom)


Tremor symptoms are involuntary muscle movements that can occur in a specific body area. The most commonly affected and most noticeable areas include the hands, arms, and head, as well as a quavering voice if the tremor affects the voice box (larynx). Tremor symptoms include hand shaking, head shaking, and trembling and shaking while performing a task, such as gripping a fork or pencil. Tremor can also occur while someone is at rest.

Tremor may occur at any age but is most common in middle-aged and older persons. It may be occasional, temporary, or occur intermittently. Tremor affects men and women equally.


Tremor is generally caused by problems in parts of the brain that control muscles throughout the body or in particular areas, such as the hands.

Neurological disorders or conditions that can produce tremor include multiple sclerosis, stroke, traumatic brain injury, and neurodegenerative diseases that damage or destroy parts of the brainstem or the cerebellum.

Other causes include the use of some drugs (such as amphetamines, corticosteroids, and drugs used for certain psychiatric disorders), alcohol abuse or withdrawal, mercury poisoning, overactive thyroid, or liver failure. Some forms of tremor are inherited and run in families, while others have no known cause.