Gum cancer usually does not cause death in early stage, but may cause death if it metastasizes to other organs in later stage. Gum cancer is a common oral cancer, more common in men than women, and more common in middle-aged and old people, which is related to poor oral hygiene, precancerous lesions and other factors.1. It will not cause death: if patients are detected and treated timely in the early stage of gum cancer, it is likely to reach the standard of clinical cure. Because the invasion degree of early gum cancer is shallow, only radical resection surgery is needed to remove the cancerous tissues and the surrounding normal tissues at a certain distance, and at the same time, surgical treatment such as alveolar process resection treatment and cervical lymphatic dissection is needed, and follow-up treatment can be performed according to the pathological results. If early gum cancer is treated in time, the cure rate is about 80% or more; 2. It may cause death: if gum cancer develops to middle or late stage and metastasizes to other organs, it may lead to death. Along with surgical treatment, methods such as adjuvant radiotherapy or chemotherapy are needed. The treatment should not only extend the surgical scope of radical resection, but also perform lymph node dissection of the surrounding area according to the extent of gum cancer invasion. If the jaw bone is invaded, the jaw bone will also be removed. After resection, depending on the situation, a reconstructive restoration is also required to restore as much oral function as possible. When a patient has gum ulcers, loose teeth, bleeding and difficulty in opening the mouth, it is recommended to go to the hospital for a clear diagnosis as soon as possible. It is better to quit smoking, alcohol and betel nut chewing in normal life, maintain good oral health and have regular oral examination. Adjust the diet structure, eat more fresh vegetables and fruits and protein-rich food, and eat less spicy and stimulating food with high temperature, so as to avoid the occurrence of oral diseases.