In patients after fracture, premature activity may lead to inflammatory manifestations such as soft tissue swelling and pain at the fracture site, as well as secondary bacterial infections, as well as slow fracture healing and osteomyelitis, and in severe cases, numbness and sensory impairment of the limbs, as well as deep vein thrombosis and even pulmonary embolism, which may affect the life of the patient. For patients after fracture, do not go to the ground prematurely. Excessive weight-bearing on the fracture site prematurely will increase the possibility of the above-mentioned complications. The fracture site and upper and lower joints should be braked in the early stages of the fracture, and in the case of lower extremity and spinal vertebral fractures, bed rest is also required. If there is a cast fixation, it is necessary to rest sufficiently for more than 4~5 weeks, but do not be immobile, because after the fracture, the lack of movement may lead to complications such as muscle atrophy at the fracture site and adhesions in the joints and other soft tissues, so it is also very crucial to do appropriate, slow, relatively small amplitude movements during the fracture period that do not affect the fracture repair as well as rehabilitation training after removal, which can be done Bed exercises, such as turning, flexion and extension of joints, etc. If the fracture is fully repaired, the patient can move to the ground according to the specific situation, but at first, the amount of activity should not be too large, and attention should be paid to the possibility of falling when standing movement, taking into account the adverse effects of premature movement after fracture.