3 doctors weighed in:
What causes geographic tongue?
3 doctors weighed in

Dr. Gregory Bussell
ENT - Head & Neck Surgery
1 doctor agrees
In brief: Unknown
Geographic tongue is a benign condition where parts of the tongue swell and other parts become smooth, leading to a MAP like appearance.
The cause is unknown.

In brief: Unknown
Geographic tongue is a benign condition where parts of the tongue swell and other parts become smooth, leading to a MAP like appearance.
The cause is unknown.
Dr. Gregory Bussell
Dr. Gregory Bussell
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Dr. Michael Fisher
Dermatology
In brief: Geographic Tongue
Geographic tongue is a harmless condition affecting the surface of your tongue.
The tongue is normally covered with tiny, pinkish-white bumps (papillae). With geographic tongue, patches on the surface of the tongue are missing papillae and appear as smooth, red "islands, " often with slightly raised borders. This condition can run in famines and is thus genetic.

In brief: Geographic Tongue
Geographic tongue is a harmless condition affecting the surface of your tongue.
The tongue is normally covered with tiny, pinkish-white bumps (papillae). With geographic tongue, patches on the surface of the tongue are missing papillae and appear as smooth, red "islands, " often with slightly raised borders. This condition can run in famines and is thus genetic.
Dr. Michael Fisher
Dr. Michael Fisher
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