Fractures and dislocations caused by bruises and injuries are very common in car accidents and sports, and some people may use some wrong first aid handling, hemostasis and bandaging due to inexperience or momentary eagerness to save lives, and are used to knead and observe the injured part with their hands and massage the injured part and other operations to reduce pain. It is important to know that improper handling, hemostasis and massage after fracture may cause very serious consequences. He complained that he could move his arms and legs at the time of the fall, but he could not stand up. Later, after his workmates found him, they helped him up with their arms and legs, and suddenly he felt the uncomfortable feeling of electric shock in his lower body. Fractures in the cervical spine area will generally stiffen the neck, do not move at will, improper operation can cause the spinal cord to be compressed to occur in the loss of function of the entire limbs of paraplegia. In the case of thoracolumbar spine fractures, improper handling can damage the lumbar spinal cord nerves to occur paralysis of the lower extremities. The correct method is that if a spinal fracture is suspected, such as severe local pain and self-perception of the sound of broken bones, it should be fixed in place and carried by 2 or more people on a plank bed, and not moved or massaged at will. 2, aggravate the bleeding local swelling after the fracture, there is a possibility of internal bleeding caused by puncturing the blood vessels, random handling of chaotic movement can puncture the local blood vessels resulting in bleeding, or make the fracture end that has been hemostatic re-bleed. For example, if the clavicle is crushed, kneading may injure the subclavian artery; if the surgical neck of the humerus is fractured, kneading may injure the axillary artery; if the humerus is fractured on the ankle, kneading may injure the brachial artery; if the lower thigh is fractured, moving may injure the artery; if the rib is fractured, moving may cause the fracture end to puncture the lung, resulting in pneumothorax, hemothorax, mediastinum and subcutaneous emphysema, etc. In addition to bleeding, the fracture end may pierce or cut the surrounding nerves, which may cause nerve paralysis and local loss of limb function in severe cases. 4, aggravated shock Severe fractures such as thigh, pelvis or multiple rib fractures combined with visceral injury, due to blood loss and pain, the patient can go into shock. If then applied to the handling bumps will further aggravate the shock, or even cause the death of the injured. 5, leading to limb infection For open wounds, even fractures, dislocation, if the dressing with unclean dressing blindly, will bring bacteria into the wound, resulting in limb wound infection, and even lead to osteomyelitis, resulting in serious consequences. 6. Causing diaphoresis For pelvic fractures, especially sharp pubic-sciatic branch fractures, improper handling and twisting of the limb, the fracture end can easily lead to urethral fracture or contusion in men, contusion of the vagina in women, and even contusion of the rectum, causing difficulty in urination and defecation. For example, if the shoulder joint is dislocated, some people try to reset it by themselves or ask non-doctors to help reset it by pulling and pulling, without understanding the mechanism of dislocation and without the help of anesthetic drugs, it is not only almost impossible to reset, but also easy to cause combined local humeral surgical neck fracture and vascular nerve injury. 8, resulting in osteonecrosis, such as the femoral neck, wrist bone fracture after turning and lifting, can damage the only remaining joint capsule vessels and the backbone trophoblastic vessels, resulting in the destruction of the blood flow of the femoral neck, not only cause fracture healing difficulties, but also may lead to ischemic necrosis of the femoral head. 9, leading to limb necrosis After limb injury, especially after combined fracture, local swelling is very serious, if improperly fixed, using a large number of dressings, although there may be some temporary hemostatic effect, but for too long, will lead to limb numbness, more than 2 hours may lead to ischemic necrosis of the limb. Random movement after a fracture is not only dangerous and leads to aggravation of the injury, but also brings many difficulties for normal treatment. Therefore, in the event of serious falls and injuries, especially when the patient is unable to move, the best way is to let a doctor or experienced personnel handle the situation, or move the injured person to a safe place nearby, contact an emergency vehicle immediately and send them to the hospital for medical treatment.