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Geographic tongue

Also called: Geographic tongue, benign migratory glossitis

Smooth, red patches with white edges on the tongue that look like a map and move around over days to weeks. It's harmless and not contagious.

HarmfulNo
ChangesPatches move over days
TriggersSpicy, acidic foods may sting

Overview

It's linked to psoriasis and allergies in some people.

Most people have no pain.

Symptoms

Common signs:

  • Map-like patches on the tongue
  • Map-like smooth patches on the tongue

Less common

  • Mild burning

When to get medical care

Call 911This isn't an emergency by itself. Call 911 for trouble breathing, chest pain, or fainting.
Get care todayA sore that bleeds.
See a doctor soonA sore in one spot that doesn't move or heal in 2 weeks.

Causes

Unknown.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Psoriasis
  • Allergies

Diagnosis

A clinician can tell by looking.

Treatment

No treatment needed.

Self-care

  • Avoid foods that sting
  • Use mild toothpaste

Medicines

Medicines that may help:

MedicineHelps withGood to know
Numbing rinse
Painful flares

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Prevention

It can't be prevented.

Which doctor treats this

  • Start with your primary care provider (family doctor or internist).
  • They may send you to a dentist or an ENT doctor (ear, nose, and throat doctor).

Back to school, work, or sports

  • Most people keep up normal school and work. Rest when you need to.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

Outlook

Harmless.

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Geographic tongue

Sources

Last updated 2026-11-12.