Shoulder pain is mainly considered in the following aspects: 1. Frozen shoulder, mainly refers to aseptic inflammation of the soft tissues around the shoulder joint, often occurs in people around 50 years old, manifesting as pain in both passive and active activities of the shoulder joint with activity limitation. 2. Rotator cuff injury, usually occurs due to trauma or chronic strain, manifesting as painful abduction and weakness of the shoulder joint, which can be clarified by MRI. 3. Shoulder impingement syndrome This syndrome mainly refers to the degeneration of the joint with age, osteophytes obviously affect the activities of the shoulder joint and cause pain due to the collision between the abduction activities and the rotator cuff. 4, thoracic outlet syndrome scapulodorsal nerve entrapment, is due to various reasons caused by muscle spasm, so that the scapulodorsal nerve is entrapped and the radioactive pain of the shoulder occurs. 5, tumors, including primary tumors of the shoulder and metastatic Tumors, metastatic tumors are relatively common, commonly metastatic tumors of the lung, which can be clarified by imaging examination.