After a tooth is extracted, the bleeding can usually be stopped initially in about 30 minutes to an hour if prompt measures are taken to stop the bleeding. However, if there is a disorder in the individual’s coagulation function, or if there is a disease such as high blood pressure, the bleeding time after tooth extraction may exceed one hour. 1. Tooth extraction is an invasive operation and bleeding will occur in the alveolar socket, gums and other areas after the tooth is removed. If the individual’s coagulation function is normal, after cotton ball pressure and other hemostatic operations, usually half an hour to an hour or so to achieve initial hemostasis, the extraction wound will form a blood clot, but within 24 hours after the extraction of teeth extraction wound may still appear bloody oozing, so that coughing up sputum containing blood. 2. If there is a disorder in the individual’s coagulation function, the coagulation factors will not be able to take effect after the extraction, which may cause prolonged bleeding time, and the exact bleeding time will be affected by the severity of the individual’s coagulation disorder. In addition, if there are problems such as high blood pressure, the pain after tooth extraction may cause a rise in blood pressure, which may cause prolonged bleeding time after tooth extraction. If the bleeding time after tooth extraction is too long, you should pay attention to it and go to a professional dental hospital in time to check the wounds of tooth extraction, clarify the cause of bleeding and carry out targeted treatment as soon as possible.