Pain is another common symptom of carpal tunnel syndrome. Some patients describe a feeling similar to a small electric shock. Others may feel a pins-and-needles sensation that travels from the wrist and up the arm.
Compression of the median nerve may also result in muscle weakness. Patients with severe carpal tunnel may have a hard time gripping, pinching, or making a fist.
Symptoms occur in episodes. In the early stages, episodes are short and infrequent. Without proper treatment, episodes, lengthen, and symptoms become more severe. In advanced cases, patients report constant pain and loss of hand function.