It is possible to get a fever from a tooth extraction. It is usually due to infection or stress. Tooth extraction is invasive operation, the wound will cause inflammatory reaction, when the inflammatory factor enters the blood, it will cause the body temperature to rise; or do not pay attention to oral hygiene after tooth extraction, it is easy to anaerobic bacteria and common bacterial infections, the reproduction of bacteria in the body will produce a large number of toxins, stimulate the body’s regulatory center, and the symptom of fever also occurs. If fever occurs after tooth extraction and the axillary temperature exceeds 38.5℃, it can be treated with antipyretic medications, such as ibuprofen extended-release tablets and acetaminophen suspension; at the same time, it can be treated with oral anti-anaerobic infections such as metronidazole tablets and tinidazole tablets in combination with antibiotics such as cefixime granules or cephradine capsules. When fever occurs after tooth extraction, it is necessary to follow the doctor’s instructions for treatment and medication, do not take medication without authorization.