A large swollen packet in the tooth bed sub, i.e., the gum, may be caused by a variety of reasons and is considered to be related to inflammation. The common ones are apical periodontitis, periodontal abscess and wisdom tooth pericoronitis, which should be treated according to the specific etiology. 1, apical periodontitis: the gums may appear red, swollen and abscessed, and pus may be discharged from the sinus tract when squeezed, which can be treated by root canal treatment to remove the infection and fill, or by applying pulpal blood flow reconstruction to regenerate the pulp. 2, periodontal abscess: there may be symptoms of red, swollen and shiny gums accompanied by pain, and the abscess surface is soft and pulsating on palpation. It can be treated by rinsing periodontal pockets, local application of iodoglycerin or incision and drainage, and oral treatment with amoxicillin and metronidazole. 3. Pericoronitis of wisdom teeth: there will be symptoms of abscess, pus exudation, painful swallowing, and pain extending to the ear and temporomandibular joint. Hydrogen peroxide can be applied to rinse the blind band, together with periodontal debridement and removal of plaque calculus treatment; 4. Others: If there is a disease such as gingival tumor, it may also manifest as a large swollen gum bag, which can usually be removed by applying surgery. It is recommended to maintain oral hygiene on a daily basis, using dental floss and flushers to clean the gaps and prevent the accumulation of food debris. Eat foods rich in vitamins and minerals and avoid spicy and irritating foods that cause inflammation. Regularly check your teeth and clean them in time if there is calculus and plaque.