Crush syndrome is often seen in crush injuries caused by blunt objects such as bricks, rocks, doors, windows, machines or vehicles, and also in crush injuries caused by explosive impacts, which often injure internal organs, causing stomach bleeding, lung and liver and spleen rupture. Because the mortality rate of this disease is high, so prevention is the key, the following to introduce you in detail how to prevent extrusion, what are the general treatment and prevention measures? Crush injury is defined as compression of an extremity or other part of the body, resulting in muscle swelling or neurological disease of the affected body part. Typical body parts involved include the lower extremities (74%), upper extremities (10%), and trunk (9%). Crush injuries are often seen when hands and feet are violently crushed by blunt objects such as bricks, stones, windows, doors, machines or vehicles; they are also seen in crush injuries caused by blast impacts, which often injure internal organs, causing stomach bleeding, lung and liver and spleen rupture, etc. More serious crush injuries are earth, stone burial injuries, this injury, often causing a series of pathological changes in the body, and even cause kidney failure, known as “crush syndrome”. According to the different parts of the crush injury and the degree of severity, the treatment methods are also different. Squeeze injury first aid treatment: 1, as soon as possible to lift the squeezing factors. 2, hand and toe crush injuries, finger (toe) under the nail hematoma is black, can be immediately cold compresses with cold water to reduce bleeding and reduce pain. 3, suspected of having internal organ damage, should be closely observed for shock aura, and call the ambulance emergency. 4.The extrusion syndrome is gradually formed after the limb is buried, so it should be closely observed and sent to the hospital in time, do not ignore the severity because there is no wound at the time of injury. 5.During the transfer process, the limb activity should be reduced, and the limb should be fixed with a splint regardless of whether there is a fracture, and the limb should be exposed to the circulating air, and massage and hot compress should never be used.