Rotator cuff injuries basically do not cause infection. 1. Clinically, rotator cuff injuries may cause aseptic inflammation in the shoulder. However, this inflammation is not caused by bacteria or viruses invading the body, so it will not lead to infection symptoms. 2. Rotator cuff injury has a certain impact on the patient’s body, if the inflammation reaction is mild, basically there will be no obvious pain, but if the inflammation reaction is more severe, it may lead to limited shoulder movement and other complications. 3. If rotator cuff injury has already occurred, it can be treated with drugs such as celecoxib and diclofenac sodium under the guidance of a doctor. If the situation is more serious, surgery may be needed to repair the damaged area. It is recommended that when rotator cuff injury occurs, actively go to the hospital for regular treatment.