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2. The Effects of Tobacco Use

Tobacco use is one of the primary causes of a yellow tongue. Smoke and nicotine in chewing tobacco stain the tongue and may irritate the papillae, causing them to swell. Swollen papillae are more likely to trap bacteria and irritants, which causes discoloration. Routine oral care can decrease the effects of tobacco use, but quitting smoking or chewing tobacco is the only way to eliminate the problem.

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