brain, spinal cord, and nerve disorders
Tremor
Causes of Tremor
Many disorders can cause tremor. Most commonly, tremors are Physiologic tremor (most common overall) Essential tremor Due to Parkinson disease Due to a stroke or multiple sclerosis affecting parts of the brain that control movement Due to severe liver disease Due to alcohol withdrawal Due to an overactive thyroid gland (hyperthyroidism) Due to hereditary disorders involving the cerebellum, such as Friedreich ataxia and Due to use of certain drugs or exposure to certain toxic substances Psychogenic tremor (due to psychologic factors) Sometimes there is more than one cause of the tremors. For example, a person may have essential tremor and Parkinson disease. 