The trigger finger is tendinitis affects the tendons that bend your fingers. When the tendon sheath becomes inflamed difficult to extension or flexion of the fingers affected, which may be blocked or suddenly skyrocket. No clear cause giving rise to the injury, but may be related to rheumatoid arthritis, gout or diabetes. The symptoms of trigger finger may start with a sore finger base and causes inflammation and swelling. Treatment of trigger finger is to eliminate compression of the tendon and allow full movement of the finger without discomfort. You can choose to use a splint or oral anti-inflammatory drugs. If these treatments do not work, you have to opt for surgery.