Swollen gums after root canal treatment may be caused by localized inflammation and irritation in the apical area, which needs to be examined by radiographs and considered for re-treatment of root canal or apical surgery. Gums swollen meaty after root canal treatment is often due to poor immunity, unable to resist the virulence of bacteria, or root canal inflammation has not been eliminated caused by root canal treatment failure, you need to take pictures and examination and consider re-endodontic treatment, control the level of bacteria in the root canal, strict root filling. If it is caused by tight root filling and external inflammation of the root tip, apical surgery needs to be considered. Gums swollen a lump of flesh, if can be determined to be root canal treatment caused by the need for dental treatment, but may also be caused by localized inflammation of the gums, the specific situation is recommended to the hospital examination and treatment.