Tooth root bulge like bone is mostly a normal phenomenon, mainly due to the thin gum layer, resulting in a more pronounced root structure, mostly in the elderly with gum atrophy, malnourished people and thinner people, which does not affect daily life, but affects aesthetics and can supplement daily nutrition and plump up the surrounding tissues. In addition, it may also be related to a variety of factors such as alveolar bone hyperplasia, apical fistula, periodontal abscess, etc. 1, alveolar bone hyperplasia: that is, jawbone augmentation, mostly caused by chronic inflammatory stimulation, trauma, poor occlusion, may also be related to congenital developmental abnormalities or genetics. The main manifestation is the appearance of hard bone plates in the jawbone area and bulging outward, which can lead to a bone like bulge at the root of the patient’s teeth. If caused by occlusal or physiological factors, no special treatment is usually required. For patients with pain and other uncomfortable symptoms, it is necessary to promptly conduct relevant examinations to clarify whether it is caused by periodontitis and other diseases, and the doctor will carry out the appropriate treatment according to the individual situation, such as scaling to remove calculus, or you can use mouthwash containing antibiotics or oral antibiotic treatment, etc., usually using metronidazole, ornidazole, etc.; 2. Apical fistula: usually caused by periapical periodontitis, pulpitis and other long-term chronic infection The patient’s gums are obviously swollen, hard, and look like a bone like bump on the root of the tooth, usually accompanied by biting discomfort, throbbing pain, and red and swollen gums. It is recommended that patients undergo root canal treatment in a timely manner to help the fistula heal, and if the treatment is not effective, then apicoectomy or extraction of the affected tooth can be considered; 3. Periodontal abscess: If suffering from periodontal abscess, the swollen gums can appear as a bone like bump on the root of the tooth, and there will be fluctuating sensation when pressed by hand, and also accompanied by odorous liquid outflow, usually caused by periapicalitis, gingivitis, periodontitis and other factors. In the case of acute periodontal abscess, it can be treated by incision and drainage, and further treated with pain-relieving and anti-infective medications under the guidance of a professional doctor. If it is chronic periodontal abscess, periodontal surgery can be performed after oral cleaning treatment and combined with the application of antibiotics such as penicillin and cephalosporins, which help prevent infection.