Abstract:Snapping scapula syndrome is the movement disorder induced by the friction between the shoulder blade and the chest wall caused by the imbalance of the muscle strength around the shoulder blade.The sound is caused by a tactile - acoustic phenomenon caused by abnormal tissue between the chest wall and the shoulder blade, and can cause mild discomfort or severe pain, or even dysfunction, depending on the severity.It is very rare in clinical practice, and the possible reason is the lack of objective understanding of this kind of disease and the lack of a clear diagnostic method, but it will make patients feel shoulder joint pain and shoulder dysfunction.In this paper, by introducing the case of scapula play loud syndrome complicated cases of chest be small muscular tension, explore the chest be small muscle tension and scapula play loud syndrome and treatment under arthroscopy assisted surgery syndrome affect the scapula play rang, and analyzes the pathogenesis of scapula play loud syndrome, provide a reference for further clinical symptoms and improve patients satisfaction.