Trigger finger, also known as stenosing tenosynovitis, is a condition that affects the fingers and causes pain, stiffness, and a clicking sensation when the affected finger is moved. It occurs when the tendon that controls the movement of the finger becomes inflamed or thickened, making it difficult for the tendon to move smoothly through the sheath that surrounds it.
The condition is most common in the thumb, ring finger, and middle finger and is more likely to affect people who perform repetitive hand movements or have certain medical conditions such as diabetes or rheumatoid arthritis. Symptoms may include pain, stiffness, a popping or clicking sensation when the finger is moved, and in severe cases, the finger may become locked in a bent position.
Treatment options for trigger finger may include rest, immobilization, stretching and strengthening exercises, medications, or in severe cases, surgery to release the affected tendon. Prompt treatment can help prevent complications and improve the chances of a full recovery.