After the fracture, there will be a lot of bleeding at the fracture end, and the whole bleeding will form a huge bruise after clotting, and the bruise will be absorbed slowly by the body, which will increase the body temperature, and the whole body temperature will come down in about a week. The nature of the fever and the infection fever after the fracture are two different concepts. The fever caused by the normal absorption of the fracture may appear only in the afternoon or at night, but the fever caused by the infection persists within 24 hours and the body temperature is constantly at a high level