General & Restorative1 September 20243 min read

What Your Tongue Says About Your Health

White coating, red patches, or sores can indicate specific conditions. Here's what each means.

Dr. Fatima Hassan

General Dentist & Endodontist

Normal tongue

  • Light pink
  • Slight white coating
  • Smooth edges
  • Visible papillae

White coating

  • Thick: oral thrush (fungal)
  • Removable: dehydration, mouth breathing
  • Patches: leukoplakia (concerning)

Red patches

  • Geographic tongue (often harmless)
  • Scarlet fever (ill)
  • Vitamin deficiency

Ulcers or sores

  • Canker sores (benign)
  • Oral cancer (persistent, worth check)
  • Herpes simplex

Black hairy tongue

  • Usually diet/tobacco related
  • Tongue scraping helps
  • Harmless but noticeable

When to see a dentist

  • Persistent change
  • Pain lasting 2+ weeks
  • Unexplained bleeding

References

  • American Dental Association
  • NHS Oral Health

Referenced sources

  • American Dental Association
  • NHS Oral Health

Medical disclaimer. This article is informational and does not replace professional clinical advice. For a plan specific to your situation, book a consultation with a Paradise Dental specialist.

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