Geographic tongue, also known as benign migratory glossitis, is a common condition in which the tongue appears to have a map-like or "geographic" pattern. The condition is harmless and usually does not cause any pain or discomfort, but it can be a cause for concern if you notice changes in your tongue's appearance or if it is accompanied by other symptoms.
The exact cause of geographic tongue is unknown, but it is believed to be related to an immune system reaction. Some factors that may increase the risk of developing geographic tongue include a family history of the condition, stress, hormonal changes, and certain dietary factors.
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