Upper back pain can result from poor posture, muscle overuse, injury, herniated disc, pinched nerve, and other conditions. Learn how to prevent and relieve upper back pain with lifestyle changes, exercises, and medications. Back pain is mainly caused by Muscle spasm, Disc Herniation, Hip Arthritis etc. Know about causes and treatment of lower and upper back pain Back pain can be caused by a number of reasons. Learn more about symptoms, causes, treatments, and prevention of upper and middle back pain. Pain in the upper spine can be caused by poor posture, an injury, or conditions like osteoarthritis. You can treat the pain at home, but you may need physical therapy.