One month after a patella fracture, usually a small amount of bone scab is formed, but not yet completely healed. One month after the fracture is in the second stage of fracture healing, the primitive scab formation period, this period of fracture will gradually through the osteogenesis growth of abundant scab, and the growth of scab will make the fracture end gradually healing. One month after the fracture is in the early stage of this phase, so the fracture usually has a small amount of scab formation, far from achieving healing. Generally speaking, it takes about 3 months to achieve clinical healing. Therefore, if the patella fracture has not reached clinical healing in one month, it is necessary to go to the hospital for a follow-up examination in one month after the patella fracture, and the doctor will give the correct judgment of the degree of recovery according to the specific symptoms, signs and auxiliary examination, and give the correct care and rehabilitation guidance according to the recovery situation.