Carpal tunnel syndrome is a condition that causes hand weakness, muscle wasting, and numbness, tingling and other symptoms. Carpal tunnel syndrome is caused by a compressed nerve in the carpal tunnel, a narrow passageway on the palm side of your wrist.
Carpal tunnel syndrome symptoms usually start gradually. The first symptoms often include numbness or tingling in your thumb, index and middle fingers that comes and goes. The anatomy of your wrist, health problems and possibly repetitive hand motions can contribute to carpal tunnel syndrome. Proper treatment usually relieves the tingling and numbness and restores wrist and hand function.