Because of the long period of time it takes for gum cancer to form, it can take several years for gum cancer to form and to be detected, but for gum cancer with symptoms, it can take about 7 to 14 days from the time of a hospital visit to confirm the diagnosis of gum cancer. The exact causative mechanism of gum cancer is not clear, and the exact time of formation of gum cancer is also unclear at this time; it could be years or decades. It is possible to detect gum cancer at an early stage if regular oral checkups are done at intervals of half a year or one year. For patients with recurring symptoms such as gum ulcers, localized pain, gum lumps, etc., they should go to the hospital in time, and the time needed for perfect examination to confirm the diagnosis of gum cancer is about 1~2 weeks. If gingival cancer can be detected early, exclude the contraindications to treatment, and give comprehensive anti-tumor treatment measures such as surgery and radiotherapy in time, most of the patients can get relatively good treatment effect.