Fingers locking up? 4 signs it might be trigger finger

Five. That is the number of fingers on each hand. And four, that is the number of signs that may indicate trigger finger, also known as stenosing tenosynovitis.

Any finger may be affected by trigger finger, and that includes the thumb. While symptoms may be more pronounced during the morning, grasping objects or straightening fingers, trigger finger can occur in both hands and multiple fingers at...