Tumors in the oral cavity can be very serious. If the tumor is benign, it needs to be surgically removed, and it will be fine after the surgery. However, if it is a malignant tumor, it needs to be enlarged. In addition to removing the tumor, some of the surrounding normal tissues need to be removed, and after surgery, according to the pathological stage, some of them need to undergo postoperative adjuvant radiotherapy and chemotherapy to improve the cure rate. If the tumor is left untreated and allowed to develop, and the tumor develops to the middle and late stage, it is likely that it cannot be removed surgically and cannot achieve the purpose of cure, which will shorten the life of the patient. In order to control the tumor and prolong the life, treatments such as radiotherapy and chemotherapy are needed.