Oral leukoplakia is clinically known as oral mucosal leukoplakia, and there is no cure for this disease, so there is no nemesis. 1. Oral mucosal leukoplakia refers to white patches or plaques on the oral mucosa that cannot be erased. The cause of this disease is not yet clear, or it is related to long-term smoking, drinking a lot of alcohol, consuming overheated or overcooled food, human papillomavirus or Candida infections, vitamin deficiencies, and frequent biting of cheeks, which cannot be cured completely at the moment, and there is no such thing as a nemesis. 2. Patients with oral mucosal leukoplakia need to actively find and eliminate local irritating factors, such as quitting smoking and alcohol, stopping cheek biting, not eating too cold or too hot food, and supplementing vitamin A appropriately. For those with cancerous tendency, it is best to review every 3~6 months, and if necessary, surgical treatment is also needed. Depending on the severity of the disease, physical methods such as laser, photodynamic therapy and freezing can also be used for treatment. Oral mucosal leukoplakia has the possibility of cancer, once you get the disease, you should actively cooperate with doctors for treatment.