Children are active by nature, and their sense of self-protection and ability are relatively poor, so they are prone to various kinds of fractures. However, the bone structure and fracture healing characteristics of children are very different from those of adults, and they also have their own characteristics in the treatment of fractures. The surgical methods and internal fixation devices used in the treatment of adult fractures cannot be applied to the treatment of children’s fractures, otherwise it will lead to a lot of adverse consequences. Some doctors blindly treat children’s fractures according to the reduced version of adult treatment without understanding the anatomical and physiological characteristics of children’s bones, which will not only easily increase the damage of children’s fractures, but also expand the treatment and lead to over-treatment. Children’s fracture characteristics performance 1, green branch fracture. Children’s bones have more organic matter content and less inorganic matter content, so the bone has high toughness and low brittleness, and the fracture caused by the injury is often like a young twig breaking, manifested as a bending of the bone or only a part of the fracture, which is figuratively called “green branch fracture” in clinical practice. Due to the asymmetry of the periosteum on both sides of the fracture area, the bone healing process is also asymmetrical, which can cause angular deformity. When treating the fracture, we can consider breaking the fracture completely and fixing it again to overcome the angular deformity. 2, pediatric fracture healing fast, strong orthopedic ability. Pediatric periosteum has strong osteogenic ability, new bone generation fast and more, healing time is significantly shorter than that of adults, and the fracture is rarely non-union. Pediatric bone in the process of growth and development of the deformity caused by the fracture has a strong corrective ability, as long as the fracture force line is satisfactory, correct the rotation and shortening displacement, even if the fracture has some misalignment (sometimes even more obvious misalignment, can be corrected in a few months to a few years without leaving any sequelae. For example, in small infants and young children with femoral stem fracture, even if 1-2 cm overlap deformity occurs, the bone overlap phenomenon is often not seen on the X-ray several years later, and the two lower limbs are completely equal in length. Of course, the most important factor in molding is age, i.e., the time of growth of the bone itself. If a bending, angular deformity occurs at the age of 2-3 years, most of the deformities can be completely corrected. On the contrary, the same deformity at the age of 10-12 years, angulation, often can not be corrected. Therefore, in the treatment of pediatric fractures should be fully estimated to the development of children’s orthopedic ability. 3, epiphyseal fractures. Another major feature of pediatric fractures. Children’s epiphyseal growth is more active, cartilage bone helps the growth of long bones. However, the bones are easily damaged, improper treatment will occur bone growth crooked, shortened, slanted and other skeletal development deformities, high disability rate, therefore, in some types of epiphyseal injuries to emphasize 100% reset, in order to prevent deformity occurs. Treatment of children’s fracture Because children’s ability to shape is relatively strong, a certain range of angulation or displacement is allowed after fracture, and with the growth of the bones, the bones will naturally return to their original shape after shaping and repositioning of the bones. Therefore, except for epiphyseal fracture, intra-articular fracture or fracture with obvious combined neurovascular injury, children’s fracture is generally advocated to be treated by conservative methods such as manipulation, plaster or small splint, and surgical treatment is adopted for unsuccessful manipulation. In recent years, due to improvements in minimally invasive surgical techniques, increased parental demands, and considerations for shortening hospitalization time, rehabilitation time, and absence from school, there has been a significant increase in the proportion of surgical reduction of fractures in children. However, even when surgical reduction is performed, there are significant differences between children and adults. Surgical reduction in children advocates the use of splints or flexible intramedullary nails for fixation to avoid damage to the epiphysis of the end of the bone and to prevent adverse effects on the growth and development of the child.