Gum cancer is a disease in which cancer cells invade the alveolar bone and jawbone. Gum cancer will show symptoms of pain, loosening of teeth and tooth displacement. Gum cancer usually requires surgery, and early gum cancer treatment is more effective and should be detected and treated as early as possible. The early symptoms of gum cancer are not obvious and may include gum ulcers, congestion and edema, which are similar to the swollen and painful gums caused by fire and are often ignored. In the middle and late stages of gum cancer, the gums may break down and flow pus, and the scope of the break down is large, and the gums, periodontium and oral mucosa will show corresponding symptoms, which will seriously affect eating, and even unable to chew food. Gum cancer may also cause numbness in the oral cavity when it develops seriously. Cancer cells may metastasize to the throat, neck and other parts of the body. After gum cancer is diagnosed, it should be treated actively. Gum cancer can be treated by chemotherapy and surgery. Chemotherapy is not effective and may recur. Surgical treatment should also be combined with chemotherapy in order to kill the cancer cells. Gum cancer is also a malignant tumor, a condition second only to tongue cancer.