Ms. Hao, 45, has been suffering from shoulder pain for a long time. Although she has been treated by many hospitals, physical therapy, acupuncture, and internal and external medication, the results were not satisfactory, and she spent a lot of energy and a lot of money, but delayed the best time to treat the shoulder disorder. Recently, Ms. Hao was admitted to our department for treatment. Pre-admission examination showed that the patient had a right rotator cuff injury and a large amount of subacromial bone formation. The right shoulder joint was severely adherent, and the movement was significantly impaired. The upper arm could not be lifted over the shoulder, and the pain was obvious when moving. Professor Wang Kun explained her condition patiently and concluded that subacromial impingement was the main cause of Ms. Hao’s shoulder pain, and decided to use “arthroscopic right subacromial debridement + acromioplasty” to treat Ms. Hao’s long-standing pain. On February 21, Prof. Wang Kun and Dr. Zeng Chun, Deputy Chief Physician, successfully performed the arthroscopic shoulder surgery on Ms. Hao. The whole procedure was successfully completed within one hour. When Ms. Hao went down to move her shoulder joint on the first day after the surgery, she had a long-awaited smile on her face, “Thanks to the Third Affiliated Hospital of Sun Yat-sen University and the Department of Arthroscopy, I am grateful for the minimally invasive method to relieve my pain. Thank you to the Third Affiliated Hospital of Sun Yat-sen University and the Department of Joint Surgery for relieving me of years of pain through minimally invasive methods and relieving my family of a great burden” – this is what Ms. Hao said from her heart! Professor Wang Kun said, in recent years, with the development of competitive sports and modern manufacturing industry, shoulder joint injuries are becoming more and more common. The common causes of shoulder pain include subacromial impingement, shoulder instability, rotator cuff tears, glenoid injuries and other disorders, in addition to the commonly known frozen shoulder. Shoulder arthroscopy is a minimally invasive technique that uses endoscopy to examine, diagnose and treat various shoulder injuries. Due to its advantages of small incision, minimal trauma, mild postoperative pain, few complications and sequelae, short operation time, short hospital stay, high surgical safety, and wide range of indications, it has gradually replaced traditional treatment as an important method for diagnosing and treating shoulder joint diseases, enabling faster and better preservation and repair of shoulder joint function compared to traditional incisional surgery. At present, through the application of shoulder arthroscopy, the orthopaedic department of joint surgery in our hospital can treat the following diseases: 1) frozen shoulder (commonly known as “frozen shoulder”, “frozen shoulder”, “fifty shoulder”, etc.), subacromial impingement, and especially “subacromial impingement”. 1), subacromial impingement, especially in patients whose conservative treatment has been ineffective for 3-6 months or has recurred. 2. Shoulder glenoid labrum tears and joint dysfunction due to shoulder joint instability in all directions, including anterior inferior glenoid labrum tears (Bankart injury) due to shoulder dislocation or habitual dislocation; multiple joint glenoid labrum injuries due to throwing sports or excessive shoulder loading. 3, Rotator cuff disease, including intractable subacromial pain or dysfunction, where imaging suggests rotator cuff lesions or tears. 4, Diagnosis and treatment of other intra-articular pathologies such as shoulder osteoarthritis cleanup, intra-articular free body removal, and shoulder release. The hyperplastic bone spur indicated by the arrow is a common cause of subacromial impingement causing shoulder pain After shoulder arthroscopy,only a few small 1cm incisions to complete the surgery After shoulder arthroscopy,only a few small 1cm incisions to complete the surgery Habitual shoulder dislocation (Bankart injury),anchor nail fixation injury to the glenoid labrum