Most of the square shoulder deformities develop in young adults, and most patients have active tuberculosis at the same time. Since there is localized pain in the early stage, which will be relieved when resting, it is easy to be ignored by the patient and cause the consequences of square shoulder deformity. Treatment of square shoulder deformity 1.Resetting treatment: The treatment of square shoulder deformity is mainly based on manual resetting, usually using local infiltration anesthesia. There are 3 methods, which are the foot stirrup method (Hippocrates method), rotation method (Kocher method) and draping method (Stimson method). If the shoulder dislocation is more than 2 weeks old and there is difficulty in resetting the shoulder joint by manipulation, brachial plexus nerve block anesthesia or general anesthesia can be used to relax the shoulder girdle muscle sufficiently and there is a possibility of successful resetting by manipulation. If the attempted repositioning fails, the joint capsule needs to be repaired by incision in time. If there is difficulty in manual repositioning, use brachial plexus nerve block anesthesia or general anesthesia to fully relax the shoulder girdle muscle, and there is a possibility of successful manual repositioning. In case of failure to reset, the joint capsule should be repaired by incision in time. 2.Fixation method: After repositioning, place the upper arm in the functional position of internal retraction, internal rotation, and 90° of elbow flexion, with a cotton pad at the fossa of the internal organs, and fix it for 3 weeks in general, or 1 to 2 weeks in the case of combined large nodal fractures. 3.Functional exercise: after 2-3d fixation, perform anterior-posterior, internal and external swing exercises of the acromioclavicular joint under the suspension of the deltoid, and gradually increase the swing amplitude. After removing the deltoid, perform muscle strength exercises for the deltoid and shoulder girdle muscles and exercises to restore shoulder mobility, but prevent excessive stretching of the torn part of the joint capsule to avoid increasing the possibility of habitual dislocation. 4.General treatment: Patients with square shoulder deformity usually pay more attention to their behavior, walking and standing posture. You can also do some exercises to correct the shoulder, and usually stand against the wall more when you have nothing to do. Also make sure you get enough sleep and ensure the nutrition your body needs. Eat evenly. Prevention of square shoulder deformity Patients with square shoulder deformity should get enough sleep and ensure that your body gets the nutrients it needs. Eat an even diet and avoid alcohol and tobacco. Eat more light foods, pay attention to your diet routine, eat more celery, rape, spinach, chard, parsley, etc. Drink more water and eat less pork, mutton and beef.