A member asked:

What causes bumps to appear on your tongue?

A doctor has provided 1 answer
Dr. Charles Gordon answered

Specializes in Adolescent Medicine

Normal: Normally the surface of your tongue is covered with papillae. About 2/3 of the way back there are other shaped structures back there. Sometimes areas drop down and you see areas with smooth borders which looked to doctors like a map - hence the term geographic tongue.

Answered 9/28/2015

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