Rotator cuff syndrome is a transarticular syndrome, including tendonitis, bursitis, and periarthritis. Most of them are caused by different degrees of degeneration and bursitis due to repeated chronic strain, resulting in local soft tissue hypertrophy and narrowing of the subacromial space. Rotator cuff tissues tend to receive extrusion from the humeral head and the acromion during shoulder joint supination, resulting in impaired joint movement. The pain of rotator cuff syndrome is not in the shoulder joint, but in the deltoid muscle, with abduction at 60 – 100 degrees, and is characterized by nocturnal pain. Immediately after the drug injection, the patient feels a reduction in pain and an increase in the range of motion of the shoulder joint. For patients with rotator cuff syndrome, a combination of treatments is needed.