The ulnar nerve is a major nerve that runs down through your arm and into your hand. It affects functions like squeezing and grasping things. Injuries to the ulnar nerve can be painful and limiting.

Ulnar tunnel syndrome occurs when the ulnar nerve in the wrist becomes compressed by a cyst or repeated strain. Treatment typically involves physical therapy and surgery. The nerve compression in ...

Ulnar deviation, or drift, is a condition where fingers bend towards the pinky finger due to inflammation. It often stems from rheumatoid arthritis (RA). Symptoms of ulnar deviation include knuckle ...