It is also known as Black Berry thumb, texting thumb, gamer’s thumb, washer woman’s sprain, radial styloid tenosynovitis, de Quervain disease, de Quervain’s tenosynovitis, de Quervain’s stenosing tenosynovitis, mother’s wrist, or mommy thumb), is atenosynovitis of the sheath or tunnel that surrounds two tendons that control movement of the thumb. In de Quervain syndrome, the tunnel where the tendons run narrows due to the thickening of the soft tissues that make up the tunnel. Hand and thumb motion cause pain, especially with forceful grasping or twisting. Womens are affected more often than men. The cause of de Quervain’s disease is not established. Occupational risk factors are debated. Repetitive hand or wrist movements can make the condition worse. Treatment is generally successful when begun early .

Keywords: De Quervain Syndrome; Thumb