Swelling often occurs in the affected area after a fracture. Due to the fracture will appear local bleeding and soft tissue damage, at the same time, poor blood circulation leads to venous and lymphatic reflux obstacles, inflammatory reaction will also appear local capillary permeability increase, tissue fluid exudation and so on, so the fracture will often appear after the swelling, is the fracture after the emergence of the normal situation, after the fracture healing will slowly subside. Swelling often occurs after a fracture, it is recommended that the patient can be given a cold compress within 72 hours after the fracture, a 20-minute, once or twice a day, can effectively reduce the pain, relieve swelling, 72 hours later can be hot compresses, accelerate blood circulation, promote the absorption of subcutaneous bruising. If the swelling after fracture is serious, you need to ask your doctor for other symptomatic treatments.