The best time for tooth extraction should be between 8:00 a.m. and 4:00 p.m. It is most appropriate to go to the hospital in the morning after breakfast because this time is the best time for the patient’s mental state. If the patient has heavy bleeding or bleeding more than once after the extraction, he can go to the hospital in time to avoid bleeding at night and delaying the best treatment. Female patients should avoid the physiological period for tooth extraction and male patients should keep good rest and not stay up late the night before, and it is most appropriate to go for tooth extraction when they are in the best physical condition. After tooth extraction, patients are advised to take more rest and not to exercise strenuously to avoid heavy bleeding caused by strenuous exercise. Oral anti-inflammatory medication should also be taken for 3 days after tooth extraction to prevent infection in the extraction socket.