DeQuervain's tenosynovitis is a condition in which a patient feels pain over the wrist joint near the base of the thumb. The tendons that extend and abduct the thumb are involved and become constricted in a tight tunnel that becomes progressively inflamed from friction and repetitive tendon gliding.
The cause of De Quervain’s Tenosynovitis has not been established. However, the inflammation of the tendons has been linked to repetitive trauma or overuse of the thumb and wrist in daily activities such as:
Most patients experience pain at the side of the wrist, near the base of the thumb. It usually occurs after recent increased activity involving the wrist and hand. It begins as an aching sensation initially and progresses to a point when any movement of the wrist or thumb produces sharp pain in the affected area. That area of the wrist may become swollen at times. Some may experience difficulty with activities that involve pinching, lifting the thumb or turning the wrist (e.g. wringing towel, cutting with scissors, stapling)