Most cases of<unk>  cause no symptoms, but infrequently there may be discomfort or pain. The exact appearance of the lesion is variable.<unk>  may be white, whitish yellow or grey. The size can range from a small area to much larger lesions. The most common sites affected are the buccal mucosa, the labial mucosa and the alveolar mucosa, although any mucosal surface in the mouth may be involved. The clinical appearance, including the surface texture and color, may be homogenous or non-homogenous (see: classification). Some signs are generally associated with a higher risk of cancerous changes (see: prognosis).<unk>  may rarely be associated with esophageal carcinoma.
Leukoplakia
Lichen planus
Malakoplakia
Oral candidiasis
Hairy leukoplakia
Keratosis
Polypill
Geographic tongue