Rotator cuff injuries are soft tissue injuries such as muscles that do not usually metastasize, but can cause pain in the neck and upper extremities. The rotator cuff is a cuff-like muscle-like structure formed by the tendons of the supraspinatus, infraspinatus, subscapularis, and teres minor muscles anteriorly, superiorly, and posteriorly to the humeral head, and rotator cuff injuries refer to inflammatory lesions caused by chronic impingement injuries, trauma, and insufficient blood supply to the shoulder. After rotator cuff injury, there will be limitation of shoulder joint activities in multiple directions such as abduction, supination, posterior extension, internal rotation and weakness of shoulder joint, as well as pain in the anterolateral shoulder joint and deltoid muscle region. Due to the injury site and its characteristics, there will be no metastasis of the injury, but when the pain intensifies, there can be radiating pain to the neck and upper limb. If rotator cuff injury has been diagnosed, early standardized treatment is recommended to reduce the adverse effects of the disease.