Gingival bulging may be physiologic, caused by teething. It may also be caused by pathological reasons, such as apical periodontitis, gingivitis, gingivoma, etc., and should be promptly consulted to clarify the cause of the disease. 1. Physiological reasons: If the gums of young children are bulging, it may be a manifestation of the eruption of teeth, generally do not need to be particularly worried. 2. Pathologic causes: (1) apical periodontitis: inflammation will lead to the formation of abscesses, the appearance of internal gum bulging, the patient may also be accompanied by pain and discomfort. It is necessary to open the pulp of the tooth to drain, relieve the inflammation, and then remove the necrotic nerve, do root canal therapy, clean up after disinfection and filling. (2) Gingivitis: If the onset of gingivitis is not treated in time, and the symptoms continue to worsen, there will be abscess formation in the inner gums, which is manifested as bulging of the inner gums. Once the abscess is formed, it needs to be incised and drained to drain out the pus. If there is obvious plaque and calculus on the lingual side of the tooth, it is also necessary to perform oral scaling, do local cleaning and then use iodine glycerin and other drugs to promote healing. (3) Gingival tumor: Gingival tumor will be manifested as bulging gums. Gingival tumor needs to take surgical resection, after the resection according to the pathological results to determine the further treatment plan. If discomfort occurs, you should go to the hospital in time to avoid delay.