Carpal tunnel
syndrome is a painful disorder of the wrist and
hand. The carpal tunnel is a narrow tunnel
formed by the bones and other tissues of your
wrist. This tunnel protects your median nerve.
The median nerve gives you feeling in your
thumb, and index, middle and ring fingers. But
when other tissues in the carpal tunnel, such as
ligaments and tendons, get swollen or inflamed,
they press against the median nerve. That
pressure can make part of your hand hurt or feel
numb.
Doing the same hand
movements over and over can lead to carpal
tunnel syndrome. It's most common in people
whose jobs require pinching or gripping with the
wrist held bent. People at risk include people
who use computers, carpenters, grocery checkers,
assembly-line workers, meat packers, violinists
and mechanics. Hobbies such as gardening,
needlework, golfing and canoeing can sometimes
bring on the symptoms.
Carpal tunnel
syndrome is linked to other things too. It may
be caused by an injury to the wrist, such as a
fracture. Or it may be caused by a disease such
as diabetes, rheumatoid arthritis or thyroid
disease. Carpal tunnel syndrome is common during
the last few months of pregnancy.