Trigger finger (stenosing tenosynovitis) is a condition that involves the locking or clicking of a nodule on your tendon when you try to bend your finger or thumb. One of the first symptoms of trigger finger is a tender spot on the palm of the hand. It often feels like the source of the pain is in one of the joints. The tenderness is often accompanied by a snapping or “triggering” of the finger when it is pulled down into a fist and when the digits are opened again. Sometimes the digit will get stuck (locked) in the bent (flexed) position. It can then be difficult to open the hand or “release” the trigger finger.
What Causes Trigger Finger?
Trigger fingers are caused by inflammation and swelling of the flexor tendon. We often don’t know the cause of the inflammation but it may be related to chronic repetitive movement.









