What is the difference between oral leukoplakia and lichen planus

Oral leukoplakia and lichen planus are common mucosal diseases. Oral leukoplakia refers to white plaques or patches that occur on oral mucosa. It cannot be erased and cannot be diagnosed as any other disease by clinical and histopathological methods. The World Health Organization has classified oral leukoplakia as one of precancerous lesions. Lichen planus is a chronic inflammatory disease of the skin and mucosa, which can occur alone in the mouth or skin, or both skin and mucosa can suffer at the same time. The World Health Organization has classified it as one of the precancerous states. The pathogenesis of both is unknown. Normal plaque lichen planus is accompanied by lesions in other parts of the mouth, and the lesions change rapidly, often hyperemia and erosion. Oral leukoplakia is mostly independent lesions, and generally changes slowly, and the mucosa is not accompanied by hyperemia.