SLAP glenoid labrum injury (Superior Labrum Anterior and Posterior), also known as anterior superior posterior glenoid labrum injury, is a newly recognized condition that has developed in recent years with the development of shoulder arthroscopy technology. Patients usually present with “shoulder pain, fear of force, reduced throwing and lifting power”, which affects the patient’s sports and quality of life. In the past, these were often considered to be “frozen shoulder”, however, as the research on shoulder joint continues, only 1/4 of the people with shoulder pain are really suffering from frozen shoulder, so a large number of patients with shoulder pain are not properly diagnosed and treated. As a result, a large number of patients with shoulder pain are not properly diagnosed and treated. Rotator cuff injury is a group of shoulder muscles and tendons, and rotator cuff injury is the wear and tear of the tendons, which causes “shoulder joint pain and weakness in lifting”. “In severe cases, patients are unable to wash their faces, comb their hair, fasten their underwear, or dry their clothes from a height, which has a great impact on their lives. Since the treatment of rotator cuff injury is very different from that of frozen shoulder, correct diagnosis is the basis of treatment of shoulder pain. If a rotator cuff injury is diagnosed as “frozen shoulder” and repeated shoulder lifting exercises are performed, it may further aggravate the wear and tear of the rotator cuff tissue and further aggravate the condition. “Frozen shoulder is self-limiting and usually resolves after 1-2 years, while a definite rotator cuff injury requires surgical repair. Shoulder arthroscopy is an effective means of treating shoulder joint disorders, with the advantages of less trauma and faster recovery, and allows direct observation of the internal lesions of the shoulder joint, allowing both diagnosis and surgical repair. Therefore, shoulder arthroscopy is gradually becoming the mainstream surgical procedure for rotator cuff disease, shoulder glenoid labrum injury, and shoulder dislocation repair.