There are many differences between children's bones and adults, which are mainly reflected in the fact that children's bones have growth plates, which have damping effect and strong toughness, thus reducing the occurrence of comminuted fractures of articular surfaces.

Children's bones play an important role in protecting the body from harm. The characteristics of children's bones include the following aspects.

① The growth plate of children's bones with shock absorption function has good toughness because it is made of chondrocytes.

② Compared with adult bones, children's bones contain less inorganic salts, and there are many Haval tubes and bone holes in children's bones, so the bones are easy to bend and be soft, which can relieve the concentrated pressure and reduce the fracture probability before children have fracture problems.

③ Children's bones have good plasticity and corrective ability, and periosteum itself has good osteogenic performance. Children's fractures rarely need surgical repair, and they often only need to stop braking and recover very quickly. Clinically, cases of fractures in children are rare.