Fever at the place of bone fracture at night is mostly normal absorption fever, and in special cases, it may be inflammatory fever caused by infection, whether it is normal or not needs to be judged according to the etiology. Bone fracture is caused by direct or indirect violence injury, so there will be bruising or soft tissue damage around the fracture site, in the post-injury hematoma mechanized absorption, the local absorption of heat, is a normal physiological response, usually low fever. Under normal circumstances, the fracture of the absorption of heat in the 1 ~ 2 weeks after the injury can gradually subside, the patient should not be nervous, relax, drink more water, protect the affected area, avoid activities can be. If it is an open fracture, it is easy to cause infection at the broken end of the fracture, causing redness, swelling, heat and pain at the fracture site, and other symptoms of infection, localized or even purulent exudate, generalized fever, chills, etc. At this time, antibiotic treatment should be carried out in strict compliance with the doctor’s instructions. As well as incision and drainage and other methods of treatment. Appearance of bone fracture site to the evening fever, such as fever persists, or even generalized fever symptoms, should go to the hospital in time for further diagnosis and treatment, so as not to delay the condition.