Gingival hyperplasia is an increase in the size of the gums due to an increase in the cellular component of the gingival tissue and is caused by many diseases. Gingival hyperplasia can be caused by many diseases, mainly spontaneous gingival hyperplasia and drug-induced gingival hyperplasia. Gingival hyperplasia can also be caused by incorrect brushing. We can identify the general gingival hyperplasia and spontaneous gingival hyperplasia and drug gingival hyperplasia according to the different symptoms of gingival hyperplasia. Recognize the symptoms, understand the condition, and diagnose in a timely manner in order to prescribe the right medicine. Diagnosis: 1, spontaneous gingival hyperplasia (1) hereditary disease. (2) Most of them begin to develop when they are young children. (3) There is diffuse hypertrophy of the gingiva with diffuse hyperplasia, which can partially cover the teeth. (4) seen in hereditary gingival fibromatosis, tuberous sclerosis, etc. 2, drug gingival hyperplasia (1) history of systemic disease, history of drug use. (2) interdental papillae or gingival margin hyperplasia globular, mulberry-like or lobulated, light pink, firm and slightly elastic, severe chewing is hampered. It is common in the anterior region and can also occur in the entire gingiva. (3) It is usually painless and may be accompanied by severe gingival inflammatory manifestations such as bad breath, bleeding from brushing and periodontal pus overflow. (4) The teeth are loosened and displaced due to extrusion of the hyperplastic gums (mostly seen in the upper front teeth). (5) The condition can be aggravated by poor oral hygiene, traumatic coaptation, dental caries, poor fillings and orthodontic appliances.