If a child has a broken arm, it is generally recommended to register with the orthopedic department, and if there is a pediatric orthopedic department in the hospital, it is recommended to prefer the pediatric orthopedic department. In addition, if it is not a normal work situation, you can also register for emergency surgery to deal with it. When a child has a fracture of the arm, conservative treatment is usually the first choice, and usually the fracture is fixed with a plaster or splint after the manipulation. However, if a child’s arm fracture has been treated regularly and the fracture has been stabilized after removal of the cast, the orthopedic department is not very useful and the rehabilitation medicine department is usually recommended. The rehabilitation medicine department can restore the function of the limb through physical therapy, exercise therapy or joint release.