Slight fracture of ankle in children can be healed by itself, but it needs external fixation according to the situation, in order to prevent the fracture from aggravated by excessive activities. Slight fracture of ankle in children generally refers to incomplete fracture of ankle, this kind of fracture can be treated conservatively because the fracture end is not obviously displaced, and children’s growth is rapid, the fracture can be healed in a short period of time. For minor ankle fracture, if the fracture line is more obvious, need to be cast or support external fixation, on the one hand, can promote better healing of the fracture, and on the other hand, mainly to prevent the ankle activities caused by further aggravation of the fracture. Although minor ankle fractures in children can heal on their own at an early stage, it is still necessary to consult a hospital and under the guidance of a doctor to carry out rehabilitation treatment.