Swollen gums and swollen lymph nodes can be caused by periodontitis, gingivitis, apical periodontitis, patients need to take general measures according to the cause of the conditioning, if necessary, can take medication, surgical treatment. 1. Periodontitis: For periodontitis causing swollen gums and enlarged lymph nodes, the gums can be cleaned by supragingival scaling and subgingival scraping to remove the calculus in the oral cavity. In addition, patients need to use metronidazole, tinidazole, doxycycline, minocycline, etc. under the guidance of the doctor. Severe symptoms need to take the flap surgery, bone grafting, guided tissue regeneration, dental implantation and other ways of treatment. 2. Gingivitis: If gingivitis leads to gingival swelling and pain and lymph node enlargement, you can follow the doctor’s instructions on gingival curettage, with 1% hydrogen peroxide solution, povidone-iodine solution and other solutions to rinse the gingival sulcus. For patients with gingival fibrous hyperplasia after the gingival inflammation subsides, gingivoplasty can be taken. 3. Periapical periodontitis: swollen gums and lymph nodes may also be caused by periapical periodontitis, then the patient can follow the doctor’s instructions with metronidazole, cefixime and other antibiotics. In addition, the patient can also take root canal therapy, endodontic hemodialysis reconstruction, microscopic apical surgery, tooth extraction and other surgical treatments. Swollen and painful gums and enlarged lymph nodes can also be caused by gum cancer, wisdom tooth pericoronitis, etc. Patients are advised to seek timely medical treatment, and the doctor will take appropriate measures to treat the cause of the disease.