The ulnar nerve is a major nerve that runs from the shoulder to the hand. An ulnar nerve injury can occur due to compression, stretching, or trauma to the nerve, resulting in numbness, weakness, and pain in the affected arm and hand. Common causes of ulnar nerve injury may include repetitive motion injuries, direct blows to the elbow, or swelling and inflammation. Treatment options may range from rest and immobilization to medication and physical therapy. In severe cases, surgery may be necessary to remove pressure on the nerve.
