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 12, 2017

Author: Healthwise Staff

Medical Review: Adam Husney, MD - Family Medicine & John Pope, MD, MPH - Pediatrics & Kathleen Romito, MD - Family Medicine