The carpal tunnel is a structure located within the wrist formed by the carpal bones as the “floor” and the strong transverse carpal ligament as the “roof.” Multiple structures run through this tunnel including all of the tendons that bend, or flex, your fingers, and the median nerve, which gives sensation to the palm of the hand, the thumb, index, long, and half of the ring fingers, on the palm side of the hand. Carpal Tunnel Syndrome occurs when there is swelling within the tunnel, resulting in increased pressure on the median nerve, causing pain, tingling, and numbness in the hand and fingers.