Carpal Tunnel Syndrome (CTS) is a condition in which the median nerve in the wrist becomes trapped in the carpal tunnel, leading to tingling, numbness, pain and sometimes loss of strength in the thumb, index finger, middle finger and ring finger. It is caused by pressure on the nerve due to swelling of the tendon sheaths, which can be caused by repetitive movements, fluid retention (pregnancy), diabetes, rheumatism, or a wrist fracture. Treatment varies from rest and physiotherapy to medication, splinting and, in severe cases, surgery to relieve the pressure.
