Shoulder dislocation, commonly known as dislocation, is a fairly common injury in sports. It is often seen in a fall, when a person instinctively raises his arm and abducts it to protect his body. Shoulder dislocation occurs easily when the arm is impacted during abduction. Symptoms of shoulder dislocation: 1. severe pain when dislocated; 2. reduced mobility of the joint, the arm hangs loosely on the side of the body; 3. the joint fossa is empty, and the displaced head of the humerus can be touched at the peak of the shoulder; 4. compared with the healthy side, the original shape of the shoulder on the affected side disappears; 5. generally, the diagnosis can be confirmed by taking an X-ray film. Treatment: Prompt medical attention should be sought after the injury. The sooner the joint is reset, the shorter the recovery time and the fewer the complications. In the absence of complications, the prognosis for shoulder dislocation is good. Braking for 1-2 weeks after dislocation, immobilization with a brace, and mobility training of the shoulder joint according to a rehabilitation program are recommended. Simple dislocations allow light activity after 2-4 weeks, and full recovery usually takes 2-3 months before high-intensity exercise. In case of recurrent dislocations, an MRI of the shoulder joint is recommended, and if the dislocation recurs 3-4 times, arthroscopic surgical treatment to increase the stability of the shoulder joint needs to be considered. In summary, shoulder dislocation is not scary, timely medical treatment and rehabilitation program will achieve better results.