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.

You have two main bones in your forearm, called the ulna and radius. The ulna runs along the outside of your wrist, while the radius runs along the inside of your wrist. There’s a bony projection at ...

Ulnar deviation, or ulnar drift, occurs when the joints in the wrist and hand shift so the fingers bend toward the ulna bone on the outside of the forearm. It can result from problems in the wrist or ...

Ulnar nerve entrapment is an injury to a nerve that runs through the arm into the fingers on the outside of the hand. It commonly occurs at or near the elbow. While ulnar nerve entrapment is usually ...

Your ulnar nerve runs all the way from your shoulder to your little finger. The ulnar nerve manages the muscles that allow you to make fine movements with your fingers. It also controls some of the ...