The wound of gingivitis after tooth extraction has not healed, may have its own coagulation dysfunction disease, or the wound is infected, but also should be considered is a foreign body residue in the wound. At present, we need to remove the primary disease first, and then symptomatic treatment, mainly including general treatment, drug treatment, debridement treatment. 1. own coagulation dysfunction disease: for example, hemophilia, this kind of patient extraction wound may not heal, this situation needs to be supplemented by coagulation factors to improve the bleeding situation, promote wound healing. 2. Infection and inflammation: If the wound is infected after extraction, it will also affect the healing. At present, local saline irrigation can be carried out, and in severe cases, debridement can be performed, with antibiotic treatment as prescribed by the doctor, such as cefixime, roxithromycin and so on. 3. Foreign body in the wound: If there is a foreign body in the tooth that has not been cleaned up, it will also affect the wound healing. It should be cut as soon as possible to clean up the foreign matter and use iodized glycerin in the gum area. After the extraction of the gum wound has not healed, need to go to the hospital in time to take dental film to determine, and under the guidance of a professional physician symptomatic treatment, to avoid unauthorized operation caused by discomfort.