Trigger finger is caused by inflammation and restriction of the tendons that bend the finger as they pass under the A1 pulley in the palm. This condition may be caused by overuse, trauma or disease. Symptoms include pain, swelling, tenderness at the base of the finger, and “catching” or “locking” when trying to move the finger. While some cases of trigger finger can be treated with steroid injections that relieve swelling and inflammation or splints/orthoses that provide relative rest, others may require surgery. Trigger finger release is a common surgical procedure that releases the tightened portion of the flexor tendon sheath.