When a meatball grows on the gum, a differential diagnosis of the disease should be made first, for this case, there are three common clinical diseases, the first one is apical fistula caused by apical inflammation; the second one is gingival tumor; the third one is malignant tumor of gum. For the first type, the first type of apical fistula is caused by the development of caries to pulpitis step by step, and finally to apical inflammation, when the inflammation does not have other overflow channels, it forms sinus tracts directly through the alveolar bone at the corresponding apical gum, and this sinus tract is usually obviously elevated and looks like a small meatball, which is the reason why many patients visit the clinic. In this case, we need to perform systematic root canal treatment on the corresponding tooth, first opening the pulp of the tooth, so that the inflammatory exudate tissue in the pulp and the periapical area can be effectively released, and then perform root canal treatment after there is no obvious exudate, and in most cases this fistula will be closed naturally. In the second case, it is the most common gingival tumor, which best fits the description of gingival meatballs. It is a typical spherical benign tumor attached to the gum adjacent to the tooth surface, with a smooth surface and medium texture, sometimes invading one tooth, sometimes invading several teeth. In this case, the best treatment is surgical excision. During the excision process, the teeth that have accumulated serious gingival tumors can be extracted if necessary, so that the gingival tumor can be cured as far as possible. Finally, there is another kind of malignant tumor of the gums, which is relatively rare, usually ulcerated swellings, but there are also individual hyperplasia in the form of spherical or cauliflower-shaped, commonly known as squamous cell carcinoma of the gums, for which surgery combined with radiotherapy and some comprehensive treatment methods are needed to treat this kind of malignant tumor.