Bleeding after tooth extraction may be due to local factors, such as soft tissue tear, blood vessel rupture, etc., which need to be treated accordingly with suture, filling, etc. It may also be due to systemic factors, such as blood disease, liver disease, etc., which need to be combined with systemic treatment while stopping the bleeding locally. 1. Local factors: check under local anesthesia, find out the bleeding site, determine the cause of bleeding, such as soft tissue tear, pull it together and suture, such as blood vessel rupture, use iodoform gauze to fill the alveolar fossa tightly, add horizontal mattress suture on both sides of the gums, and combined with the roll of gauze to stop the bleeding by compression. 2. Systemic factors: heavy bleeding and repeated bleeding should do blood related checks, if there are blood diseases, liver disease, etc., in the treatment of local at the same time, should be combined with systemic treatment, if necessary, blood transfusion transfusion. There may be other reasons for bleeding after tooth extraction, so it is recommended to go to the hospital in time for targeted treatment.