Ways to prevent shoulder dislocation in normal people: 1. Exercise shoulder joint flexibility. 2.Muscle strength training around the shoulder joint. 3.Sensory training of the shoulder joint. 4.Warm-up exercises before each exercise – running, pulling the whole body joint. To prevent the shoulder joint dislocation after the first dislocation: 1.Stop the shoulder joint for the time strictly according to the plan made by the doctor. 2. Exercise as described in the previous method of preventing shoulder dislocation. 3.Prohibit participation in sports and training for 3 months. 4.Forbid to participate in strenuous and confrontational sports within 6 months. Methods to prevent re-dislocation of habitual shoulder dislocation: Surgery is the best way to treat re-dislocation of habitual shoulder dislocation and also to prevent side injuries of shoulder instability.