What is a fracture? Definition: A disease caused by disruption of the integrity or continuity of bone or bone trabeculae, with pain, swelling, bruising, dysfunction, deformity, and bone rubbing sound bone rubbing sensation as the main manifestations. It is a disease in which the bone is partially or completely broken due to trauma or internal injury. Fractures are basically caused by accidental injuries, which occur frequently in modern life at high speed. How can fractures be classified? According to different classification criteria, fractures can be divided into different categories, such as stable fractures and unstable fractures according to stability, open fractures and closed fractures according to the presence or absence of wounds, crack fractures, bruise fractures, oblique fractures, transverse fractures, comminuted fractures, spiral fractures and compression fractures etc. In addition, if classified according to the time since the fracture, it can be divided into fresh and old fractures. The classification of fractures is very closely related to the choice of fracture treatment and the timing of treatment. For example, due to the greater bone toughness of children and adolescents, green branch fractures often occur after trauma, and this fracture only requires traction to reset and then plaster fixation, which can heal very well; while oblique fracture is a kind of unstable fracture, even if the manual reset is satisfactory and then plaster external fixation, it is difficult to maintain a good reset, and usually less than a week will be displaced and deformed healing will occur. What are the places where fractures are likely to occur? Most of the bones in the human body are hard, especially in young adults, and fractures usually occur where the cortical cancellous bones meet, usually at the ends of long bones. For example, the proximal end of the humerus in the upper arm, the distal end of the radius in the forearm, and between the trochanter (rotor) of the femur are the areas where hard bone and loose bone meet, and these areas are prone to fracture when subjected to violence. And patients with osteoporosis, usually the elderly, are more prone to fracture.