Tongue cancer is the most common oral cancer, more common in men than women. Most of them are squamous cell carcinoma, especially in the anterior 2/3 of the tongue, while adenocarcinoma is less common and mostly located at the root of the tongue. How to prevent tongue cancer? The following are the measures to prevent tongue cancer. 1. Pay attention to oral hygiene, brush your teeth every morning and evening, and rinse your mouth after meals. 2.Grind and change the sharp non-functional cusps and marginal ridges to make the cusps and marginal ridges of the occlusal surface of the crown into round and blunt shape to prevent damage to the marginal tissue of the tongue. 3.Cancel smoking, alcohol and other bad habits, strengthen physical exercise, improve nutrition, eat more fresh fruits rich in vitamins and anti-cancer and anti-cancer effects, and eat less stimulating food. 4.If there is cavity, it should be filled in early, and the residual crown and root that can be repaired should be treated in time to restore the normal anatomical form of the tooth as early as possible. 5.If benign lesions or precancerous lesions are found, such as papilloma of the tongue or erosive flat moss, etc., they should be removed and biopsied in time, or treated actively and observed regularly.