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Thrush

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Thrush

Thrush is a yeast infection that causes white patches in the mouth and on the tongue. The patches look like cottage cheese. In a baby, thrush may also cause diaper rash.

Your doctor can prescribe medicine that will clear it up.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

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This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.