Carpal tunnel syndrome is a pain disorder in the hand caused by pressure on the median nerve that travels across the wrist in a tunnel. The bottom and sides of the tunnel are formed by wrist bones, while the top of the tunnel is surrounded by a band of fibrous tissue (transverse carpal ligament). Inside of the tunnel there are tendons that connect muscles to the fingers and thumb and the median nerve.
Trigger finger is a disorder of the hand which can cause painful clicking or locking of the fingers or thumb. The condition limits finger movement and affects the tendons in the fingers or thumb.