The recovery time needed for rotator cuff injuries depends on the severity of the specific injury, usually patients with mild injuries can recover in 1~2 months, while severe cases may recover in 3~6 months. The rotator cuff is a general term for the tendon tissue covering the subscapularis, supraspinatus, infraspinatus and teres minor muscles around the shoulder joint. Rotator cuff injury is a common sports injury. 1. Slight injury: rotator cuff injury is easy to cause shoulder pain and swelling and other symptoms, if it is only a slight injury, there is no obvious structural change of the rotator cuff, it can be treated conservatively, and usually it can be fully recovered in 1~2 months’ time. 2. Serious injury: for example, there are structural changes around the rotator cuff, which may cause motor dysfunction. Generally, it is necessary to use shoulder arthroscopic surgery to repair, and it takes 3~6 months to have the possibility of recovery. It is recommended that patients with rotator cuff injury should consult the doctor in time, and under the guidance of professional doctors, do not treat blindly to avoid the adverse consequences.