Chills on the body after tooth extraction can be caused by low blood sugar, low blood pressure, infection and other factors. 1. Low blood sugar: If you did not eat anything before the tooth extraction. Due to the long time of tooth extraction, it may cause the blood sugar level in the body to drop after the tooth extraction is completed. This results in symptoms of hypoglycemia, which usually causes discomfort such as chills on the body. It is recommended to choose glucose oral solution for treatment under the guidance of the doctor, and at the same time, blood sugar should be monitored. 2. Hypotension: If the patient has a history of postural hypotension. Usually during the extraction process is lying down, after the extraction of teeth from the lying position to the upright position, there will be low blood pressure, can also lead to cold body. It is recommended to monitor the blood pressure regularly and take medication under the guidance of a doctor if necessary. 3. Infection: If the sterilization of instruments is not standardized in the process of tooth extraction, or no attention is paid to oral hygiene after tooth extraction, it will lead to bacterial infection, which will lead to the emergence of bacterial infection. It will lead to bacterial infection, which will lead to inflammatory lesions in the oral cavity. Usually cause chills, high fever and other uncomfortable symptoms, you can choose amoxicillin, ceftazidime and other antibiotics as prescribed by the doctor for treatment. It is recommended that the tooth be extracted when the disease is effectively controlled by the system and the physical condition is compatible. When the above symptoms appear, it is recommended to consult a doctor in time, after a comprehensive assessment of the condition of the treatment.