Signs and symptoms of geographic tongue may include: 
Smooth, red, irregularly shaped patches (lesions) on the top or side of your tongue
Frequent changes in the location, size and shape of lesions
Discomfort, pain or burning sensation in some cases, most often related to eating spicy or acidic foods
 Many people with geographic tongue have no symptoms. Geographic tongue can continue for days, months or years. The problem often resolves on its own but may appear again at a later time. When to see a doctor Geographic tongue is a minor — although sometimes uncomfortable — condition. However, lesions on the tongue may indicate other more-serious conditions of the tongue or diseases affecting the body in general. If you have lesions on the tongue that don't resolve within 10 days, see your doctor or dentist.