Patients with shoulder tendonitis may experience soreness, minimal swelling and pain when moving the shoulder, notes Mayo Clinic. These symptoms usually occur where the tendon attaches to the bone.
Shoulder tendonitis is a condition that occurs when the tendons of the shoulder muscle become swollen as a result of injury or excess stress, says Mayo Clinic. Repetitive motions often cause stress to tendons that leads to tendonitis. The self-care methods for treating shoulder tendonitis include physical therapy and resting the injured shoulder. Doctors often recommend pain-relieving drugs to reduce the associated pain. Surgery is only used to repair torn tendons.