Trigger Finger in San Diego, CA
This injury develops primarily from activities that require repetitious use of the hand and arm.
Trigger finger is an inflammation of tissue inside your finger or thumb. It is also called “tenosynovitis.” Tendons and the synovium (a slick membrane that allows the tendons to move easily) become swollen, making it difficult to straighten the finger or thumb. The first sign of trigger finger may be pain and swelling where the finger or thumb joins the palm. As the tendon becomes more inflamed, the finger may start to catch when you try to straighten it. When the locked tendon releases, the finger jumps as if you were releasing the trigger on a gun.
AAOS Fact Page: Trigger Finger