Blood clot oozing after tooth extraction, if it is a slight blood, you can take ice water to relieve or observe; if it is active oozing, it is recommended to put local pressure to stop bleeding or hospital consultation. Generally 15~30 minutes after tooth extraction, blood clot can be formed and bleeding stops. At this time, if strenuous exercise, overheating diet or long-term use of anticoagulant drugs patients will have a slight oozing phenomenon, it is recommended to observe or take a moderate amount of ice water to relieve. If there is more blood seepage, we can consider local biting cotton ball compression to stop bleeding for 10~15 minutes. If there is no obvious improvement after observation, or if the bleeding worsens, or if it is accompanied by active bleeding, it is recommended to go to the hospital, take out the blood clot, clean up the alveolar socket and recoagulate, and if necessary, suture to stop the bleeding. Close observation is recommended, especially for patients with a combination of systemic underlying diseases, so as to avoid delay.