what causes trigger finger in diabetics
Trigger Finger. A painful condition that causes catching or locking of a finger as it is extended. Trigger finger is due to overgrowth of tissue in the tendon sheath (the protective membrane) of the flexor muscles, the muscles that ordinarily allow fingers to curl. Also called flexor tenosynovitis, trigger finger is a fairly common complication of diabetes, especially long-standing diabetes.
Trigger finger can be caused by a repeated movement or forceful use of the finger or thumb. Rheumatoid arthritis, gout, and diabetes also can cause trigger finger. So can grasping something, such as a power tool, with a firm grip for a long time. Farmers, industrial workers, and musicians often get trigger finger since they repeat finger and thumb movements a lot.