Carpal tunnel syndrome involves the median nerve as it crosses the wrist. Here, it passes through a tunnel, formed by the ligaments of the wrist and tendons. Frequently, the ligaments will enlarge, or hypertrophy, for a variety of causes or for no known cause at all. These thickened ligaments will then compress and damage the median nerve. Symptoms appear usually in the thumb, index and middle finger and the hand.
Causes of Carpal Tunnel Syndrome
Carpal tunnel syndrome is caused by external pressure on the nerves at the wrist. This pressure is caused by thickened or swollen ligaments and tendons that form the carpal tunnel. Wrist fractures can also lead to similar symptoms.
Signs and Symptoms of Carpal Tunnel Syndrome
Carpal tunnel syndrome produces tingling or numbness in part of the hand, It most commonly involves the thumb, index and middle fingers. Sharp pains may shoot up the arm from the wrist. Hand, wrist or arm pain may awaken the person at night. Tingling and numbness of the hand may also be noted, particularly after sleeping for a while. Morning stiffness, cramping of the hands and weakness may be noted. You may notice that you frequently drop objects from your hand. The skin over the palm and fingers may appear dry and thickened.
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Medical Content Last Updated on 07/12/2008
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