What is De Quervain's Tenosynovitis?
De Quervain’s tenosynovitis is a painful condition affecting the tendons on the thumb side of your wrist. If you have de Quervain’s tenosynovitis, it will probably hurt when you turn your wrist, grasp anything or make a fist.
More about De Quervain's Tenosynovitis
Although the exact cause of de Quervain’s tenosynovitis isn’t known, any activity that relies on repetitive hand or wrist movement — such as working in the garden, playing golf or racket sports, or lifting and gripping onto objects — can make it worse.
Tenosynovitis is the inflammation of the fluid-filled sheath (synovium) that surrounds the tendon.