De Quervain’s tenosynovitis has been described as an inflammation of the tendons that straighten and pull the thumb back. Latest research indicates that it is more associated with tendon degeneration and microtrauma of the tendons.

Repetitive movement, excessive and accumulative strain of the thumb and wrist is commonly the cause of De Quervain’s. It can also be the result of an acute injury.

Typical symptoms include pain with thumb/wrist movement, swelling over the affected area and difficulty with functional use. Recent or expectant mothers and individuals who have job requirements of a particularly repetitive nature are most at risk of experiencing De Quervain’s tenosynovitis. For this reason, De Quervain’s tenosynovitis, may also be called ‘mum thumb’ or ‘washer women’s wrist’.

In mild to moderate cases of De Quervain’s tenosynovitis, hand therapy can be very effective. Therapy usually involves a combination of splinting, soft tissue treatment, activity modification and a graded strengthening program.