Carpal Tunnel Syndrome

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Definition

Carpal tunnel syndrome is a nerve disorder of the hand. It is caused by compression of the median nerve. The median nerve gets squeezed inside a narrow passage in the wrist called the carpal tunnel. This nerve provides feeling to the thumb, index and middle fingers, and half the ring finger.
Carpal Tunnel Syndrome
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Causes

Carpal tunnel syndrome is created by pressure on the median nerve. This pressure is caused by the carpal tunnel becoming narrower. The narrowing can be caused by many factors, including:
  • Swelling of tissue in the carpal tunnel due to injury or fluid changes in your body
  • Hereditary narrow carpal tunnel
  • Tumors (rare)

Risk Factors

Women and older adults are at greater risk for carpal tunnel syndrome. Factors that may increase your risk of carpal tunnel syndrome include:

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