Clavicle fracture in 4-year-old children, 4-year-old children belong to young children, this time the children’s bones are soft, calcium is relatively less than adults, soft bone so the fracture will not be comminuted, usually green branch fracture, fracture after the displacement is not too big, so take conservative treatment. There are several measures of conservative treatment: 1) clavicle band fixation; 2) octagonal bandage fixation. Both of these 2 types of fixation require the child to lie flat and maintain a flat posture to keep the fracture aligned and in alignment. Conservative treatment can heal the fracture in 2-3 weeks, and children are much more capable of healing than adults. If the fracture is displaced and combined with neurovascular injury, surgical exploration is indicated, and most children can receive good results with conservative treatment.