The time it takes for oral white spots to become cancerous cannot be accurately determined and is related to multiple factors. The time from oral leukoplakia to cancer varies from person to person and is related to individual’s condition, so it is not possible to generalize and judge the exact time. Some patients with more serious oral leukoplakia may develop oral cancer in a few months. Some patients may develop oral cancer in a few months, while some patients may not have serious oral leukoplakia and may not develop oral cancer for a long period of time if the disease is properly controlled. Although oral leukoplakia is relatively more dangerous, there is no need to have too much psychological pressure. Clinically, oral leukoplakia needs symptomatic treatment, such as using vitamin A, retinoic acid and other medications, and surgery is needed to remove oral leukoplakia if necessary. If necessary, surgery is needed to remove the oral white spots. In the process of treating oral white spots, you need to pay more attention to diet and keep a light diet. Under the guidance of the physician to use drugs.