Trigger finger or stenosing tenosynovitis occurs when the flexor tendon sheaths (around the knuckles) in the hand are inflamed. This condition has no direct causes, but is associated with repetitive gripping and squeezing motions and medical conditions like gout and diabetes. Symptoms include soreness and a painful clicking and snapping sensation when flexing and extending the fingers, as well as trouble straightening the fingers when bent.
Treatment for trigger finger begins with resting and limiting the activities that aggravate the condition. A splint or cortisone injection may be the next option depending on the particular diagnosis. However, if nonresponsive or too advanced for conservative treatments, surgery to release the tension may be required.