A dislocated shoulder is medically referred to as a shoulder dislocation and usually requires repositioning by a physician through repositioning maneuvers such as Hirschsprung’s method or traction pull-up. The common cause of shoulder dislocation is dislocation due to external force such as high-energy impact or pulling, or in hemiplegic patients, the shoulder joint is dislocated due to gravity because of the lack of muscle tone. 1. Dislocation caused by external force: Dislocation caused by external force will have strong pain. Under the stimulation of pain, the muscles and ligaments around the shoulder joint will be tensed, so it is difficult to reset itself. It is recommended to go to a regular hospital and use Hirsch’s method or traction upward pulling method to reset the shoulder after excluding fracture. After reset, it should be suspended and fixed with a triangle scarf for three weeks, which is beneficial to the repair of damaged ligaments, joint capsule and other tissues. 2. Dislocation caused by gravity: very few patients, such as hemiplegia, one side of the limb completely lost function, muscle tone is 0, shoulder joint structure loose, will be dislocated due to gravity. In this case, reset can be accomplished by using hand rest. However, due to the lack of muscle tone, the shoulder will be dislocated again after letting go of the hand. Therefore, long-term tricot suspension is usually required to prevent damage to the blood vessels from being stretched. If you have a dislocated shoulder, it is recommended that you go to a regular hospital as soon as possible.