Fractures are not necessarily cast, depending on the degree or location of the fracture. The principles of treatment for fractures are reduction, immobilization, and functional exercises. No matter what kind of fracture is needed to fix the fracture part properly. And there are internal fixation and external fixation. Commonly used external fixation methods include small splint, plaster bandage, spreading frame and so on. Small splint fixation is commonly used for humerus, ulnar radius, tibial fibula and other parts of the fracture, osteoarthritic injuries and osteoarthritic postoperative external fixation of the plaster bandage is often used. Serious shoulder and elbow joint trauma need to be fixed with adductor frame. Internal fixation is the use of some kind of instrument within the body to keep the fracture site from being displaced after reset, and commonly used fixation materials include bone splints, screws and so on. If there is a fracture, it is recommended to go to the hospital in time for consultation and standardized treatment under the guidance of the doctor.