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Essential tremor

Other Names for this Disease
  • Benign essential tremor
  • Familial essential tremor
  • Hereditary essential tremor
  • Presenile tremor syndrome
  • Tremor, hereditary essential, 1
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Essential tremor is a disorder of the nervous system that causes involuntary, rhythmic shaking (tremor), especially in the hands. It involves tremor without any other signs or symptoms, and is distinguished from tremor that results from other disorders or known causes, such as tremors seen with Parkinson disease or head trauma.[1] Essential tremor (sometimes called benign essential tremor) is the most common of the more than 20 types of tremor.[2] Essential tremor is a complex disorder. Several genes are believed to help determine an individual's risk of developing this condition. Environmental factors may also be involved.[1] In mild cases, treatment may not be necessary. In cases where symptoms interfere with daily living, medications may help to relieve symptoms.[3] 


Last updated: 5/6/2013


  1. Essential tremor. Genetics Home Reference (GHR). 2008; Accessed 5/5/2013.
  2. NINDS Essential Tremor Information Page. National Institute of Neurological Disorders and Stroke (NINDS). 2013; Accessed 5/5/2013.
  3. Essential tremor. MedlinePlus. 2011; Accessed 5/5/2013.
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Basic Information

  • provides information about essential tremor. Click on the link to view this information.
  • Genetics Home Reference (GHR) contains information on Essential tremor. This website is maintained by the National Library of Medicine.
  • MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
  • The National Institute of Neurological Disorders and Stroke (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.
  • The National Organization for Rare Disorders (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Essential tremor. Click on the link to view a sample search on this topic.