Patrick J. McDaid, M.D.

Trigger finger is a condition in which one of your fingers gets stuck in a bent position. Your finger may bend or straighten with a snap — like a trigger being pulled and released. Also known as stenosing tenosynovitis (stuh-NO-sing ten-o-sin-o-VIE-tis), Trigger Finger is caused when inflammation narrows the space within the sheath that surrounds the tendon in the affected finger. Tendons are fibrous cords that attach muscle to bone. Each tendon is surrounded by a protective