After extraction, if the extraction wound keeps bleeding, it is necessary to bite clean cotton balls or gauze on the location of the extraction wound for 30 minutes to one hour to stop the bleeding by pressure, at which time the blood clot will gradually form and slowly there will be no more significant bleeding. If the bleeding continues afterwards, it is recommended to seek immediate medical attention. Generally, the doctor will use gelatin sponge or iodoform oil gauze under local anesthesia to caulk the extraction wound, or make “8” suture on the mucosa of the extraction wound to pull together the soft tissue of the buccolingual side of the extraction wound to effectively reduce the exposure of the extraction wound and reduce bleeding, or use other hemostatic drugs, such as epinephrine, clotting injection etc.