Yellow tongue is usually a harmless symptom due to bacteria buildup.

Yellow tongue can also be a phase before a condition calledblack hairy tongue.

Are There Tests to Diagnose the Cause of Yellow Tongue?

Woman drinking coffee

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Frequently Asked Questions

Yellow tongue is resulting from extra bacteria on the tongue.

This can be a result of poor oral hygiene or consuming too much alcohol or caffeine.

smoking, some prescription medications and cancer treatments, and illegal drugs.

Drugs that treat COVID-19 can also affect the body’s bacteria.

Also, infection can lessen saliva in the mouth, which causes bacteria to remain on the tongue.

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