YES YES YES: Smoking for years leads to white areas on tongue or cheek (leukoplakia) that is precancerous almost always.
Answered 7/15/2013
5.3k views
Watch it closely: Most premalignant lesions do not progress to invasive cancer, but keep a close eye on this -- follow-up biopsies for any changes are likely -- and your vigilance may well save your life.
Answered 9/11/2013
5.3k views
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