Lesions that might signal oral cancer (more in tobacco chewers)
Two lesions that could be precursors to cancer are leukoplakia (white lesions) and erythroplakia (red lesions). Although less common than leukoplakia, erythroplakia and lesions with erythroplakic components have a much greater potential for becoming cancerous. Any white or red lesion that does not resolve itself in 2 weeks should be reevaluated and considered for biopsy to obtain a definitive diagnosis.