De Quervain’s Tenosynovitis
De Quervain's Tenosynovitis is the name given to tendinosis (swollen tendons) of the abductor pollicis longus and extensor pollicis brevis tendons located at the base of the thumb. It typically occurs as a result of repetitive microtrauma (e.g. activities that require forceful gripping or repetitive use of the thumb like gripping a hammer) but is also associated with pregnancy and rheumatoid arthritis. It presents as pain over the thumb side of the wrist, swelling, and/or a catching or snapping sensation and may limit wrist range of motion.