Carpal Tunnel Syndrome is caused by compression of the Median Nerve in the wrist. This nerve, which supplies many small muscles in the hand, passes into the hand between the long tendons of some of these muscles, and lies below a sheath, which helps hold these ligaments in place.
Tightness of this sheath can when the wrist is flexed, lead to pins and needles and or numbness. The condition can be very distressing and uncomfortable. It is usually more common in women especially during pregnancy or the menopause, where there is often fluid retention which can build up under and around this sheath.
Often worse at night or during repetitive flexion actions of the wrist. Relief can be gained by hanging the arm downwards if it is fluid related. Permanent cures can sometimes, but not always, be gained by surgically releasing the sheath.
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