(Is it the road map to
We don't know what it is, we don't know why it happens and we don't need to treat it.
What causes geographic tongue?
With Geographic tongue some of the muscle fibres that cover the tongue are missing in the red areas and are overgrown in the grey/white borders. It tends to heal and then recur. This gives rise to the appearance of a map changing on the tongue eg hence the name migratory glossitis. It may last for months or never really disappear.
Are there any problems with having a geographic tongue?
Usually a geographic tongue is painless. If you have a painful tongue you should consult the dentist or doctor. It is possible to get a similar appearance with a Candida infection but this is usually quick in occurring and painful.
Stress is believed to trigger a geographic tongue. Other trigger factors may be alcohol, tobacco, spicy foods, and citrus fruits.