Chronic arm pain or discomfort could be related to an injury or overuse. Examples include tennis elbow, trauma to the arm, arthritis, bruises, pulled muscles, or other conditions. Treatment for the problem will depend on the cause, but often rest, ice, pain relievers, and stretching exercises can relive arm pain. Your doctor can diagnose your arm pain and help you find the best treatment. Follow the links below to find WebMD's comprehensive coverage about how arm pain is caused, treatments for arm pain, preventing arm pain, and much more.