Conditions InDepth: Carpal Tunnel Syndrome
by Ricker Polsdorfer, MD
Carpal tunnel syndrome is caused by a compressed nerve in the wrist that causes symptoms in the hand. Pressure on the median nerve, which is inside a narrow passage in the wrist called the carpal tunnel, causes the nerve to malfunction. This nerve provides feeling to the thumb, index and middle fingers, and half the ring finger. It also controls several muscles in the hand, including the muscle that allows the thumb to touch the little finger. Compression occurs when the tissues in the carpal tunnel swell up.
Carpal tunnel syndrome is a repetitive strain injury. Although there are many causes for carpal tunnel syndrome, by far the most common is doing repetitive motions as part of your job. Many experts believe that the increased incidence of carpal tunnel syndrome is due to changes in workplace responsibilities in which one person commonly does a single task over and over again. There are approximately 1 million new cases every year.
Carpal tunnel syndrome. EBSCO DynaMed Plus website. Available at: http://www.dynamed... . Updated September 7, 2017.
Katz RT. Carpal tunnel syndrome: a practical review. Am Fam Physician. 1994;49:1371-1379, 1385-1386.
Viera AJ. Management of carpal tunnel syndrome. Am Fam Physician. 2003;68(2):265-272.
Last reviewed September 2018 by EBSCO Medical Review Board James P. Cornell, MD
Last Updated: 9/17/2014
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at firstname.lastname@example.org. Our Health Library Support team will respond to your email request within 2 business days.