Mouth Sores

Mouth sores include any ulcer or lesion in or around the mouth. Most are from minor trauma or viral infections, but persistent or atypical sores need evaluation.

Table of Contents

Common Types

  • Canker sores (aphthous ulcers)
  • Cold sores (HSV-1)
  • Oral thrush
  • Hand-foot-and-mouth disease
  • Trauma from biting, sharp food, dental work
  • Burns from hot food
  • Drug reactions
  • Oral cancer (uncommon but important)

When to See a Doctor

  • Sores lasting more than 2 weeks
  • Unusual size, color, or location
  • Multiple recurrences
  • Severe pain, difficulty eating, or systemic symptoms

Related Symptoms

Aphthous Stomatitis

Common cause

 Oral Herpes

Common cause

 Oral Cancer

Important to rule out
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • American Academy of Oral Medicine. Mouth Sore Resources.