7 Things Your Tongue Says About Your Health

3. White Patches and Yeast Infections

A white, patchy tongue that is abnormally lumpy could be the result of a candida yeast infection called thrush. Thrush can develop after taking a course of strong antibiotics, which kills the naturally occurring bacteria in the oral cavity, allowing the yeast to multiply, and people with weakened immune systems are more susceptible. Thrush may cause mild pain or taste disturbances. It is important to get checked for thrush if you see white patches because, unlike other yeast infections, it cannot be cured with over-the-counter medications.