Swelling during fracture recovery is a normal phenomenon, the length of swelling varies from person to person and from condition to condition, severe fracture swelling will also be heavier, the duration of swelling will also be extended accordingly, and the swelling of the lower limbs is also usually heavier than that of the upper limbs. If the fracture is immobilized for a long period of time, the recovery time of post-fracture swelling should be prolonged accordingly, as long as it is not serious swelling, do not be overly concerned. In addition, swelling of the lower extremities needs to be watched for deep vein thrombosis. If deep vein thrombosis is suspected, an ultrasound of the lower extremities needs to be performed in the hospital. Rehabilitation of the fracture helps to reduce the swelling, and early rehabilitation helps to reduce the swelling. There is a pattern of swelling during the recovery period of fracture, the swelling is heavy at night after daytime activities, and it will subside in the morning after waking up, and gradually reduce for a period of time.