Shoulder impingement is also called swimmer’s shoulder, tennis shoulder or rotator cuff tendinitis. It is an inflammatory condition of the shoulder tendons. Individuals with shoulder impingement may experience severe pain at rest and during activities as well as weakness of the arm and difficulty in raising the arm overhead. X-rays and MRI can assist in diagnosis. Shoulder impingement can be treated with rest, ice and anti-inflammatory drugs, as well as avoidance of shoulder movement activities. Physical therapy may be advised to strengthen the muscles and steroid injections may be given if pain persists. Arthroscopic surgery is recommended if the rotator cuff tendons are torn or to remove bony spurs.