May be occasional (sporadic), temporary (episodic) or occurring at intervals (intermittent)
May affect the head, hands, arms, eyelids, or other muscles
May not affect both sides of the body equally
A shaking or quivering sound to voice
Head nodding
Tremors that worsen with voluntary movement or emotional stress
Tremors that disappear during sleep
Signs and tests:
Tests depend on the suspected cause of the tremor. However, a neurologic examination should be conducted in most cases.
Review Date: 8/26/2006
Reviewed By: Gail A. Kang, M.D., San Francisco VA Parkinson's Disease Research, Education, & Clinical Center, San Francisco, CA. Review provided by VeriMed Healthcare Network.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's
accreditation program
is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s
editorial process
. A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 1997-2007 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.