Tongue cancer may be related to bad living habits, and may also be caused by physical factors or dietary factors. 1. Bad living habits, eating too hot, too spicy and irritating food for a long time, not paying attention to oral hygiene, invasion of bacteria or other pathogens may induce tongue cancer. 2. Physical factors, tongue cancer may appear if it is often stimulated by radioactive elements or abraded by teeth for a long time, resulting in skin ulceration. 3. Dietary factors, tongue cancer may be induced by frequent smoking, drinking and betel nut chewing. If tongue cancer has already appeared, it is necessary to seek medical treatment and surgery in time to avoid the danger of life.