Most of the bone scabs grow faster with rehabilitation exercises. 1. Clinical rehabilitation exercises can promote the growth of bone scab, but must be carried out under the guidance of physicians, that is, the principle of “combination of static and dynamic”, which is aimed at preventing common complications during the rehabilitation process, and at the same time, can promote fracture healing, but can not trigger the displacement of the fracture, or re-fracture. 2. Exercise is generally carried out in the early stage under the premise of bed rest, and the two are not conflicting. Rehabilitation exercises include flexion and extension joint exercises, muscle exercises, incomplete weight-bearing exercises in the late stage, to complete weight-bearing exercises, which on the one hand, can prevent adhesion and ankylosis of the joints and avoid muscle atrophy, and at the same time, can promote the healing of the bone scabs. Rehabilitation exercises must be carried out under the supervision of a physician.