A Answers (2)
Mehmet Oz, MD, Cardiology, answeredGeographic tongue isn't dangerous, but it's a warning sign that you might be getting an illness.
Your tongue may assume the appearance of a roadmap when you have a condition known as "geographic tongue," which results from the over-activity of white blood cells. In a kind of immune system error, the cells produce smooth, red, irregularly shaped patches on the top or sides of your tongue. While this condition is generally harmless, in some cases these patches can cause pain or a burning sensation, especially when eating strongly flavored or spicy foods.