Mouth Ulcers
Mouth ulcers are open sores in the mouth lining. Most are canker sores or related to minor trauma or infections, but persistent or large ulcers need attention.
Table of Contents
Causes
- Aphthous stomatitis (canker sores)
- Herpes simplex (cold sores)
- Trauma
- Behçet's disease
- Inflammatory bowel disease
- Celiac disease
- Nutritional deficiencies (iron, B12, folate)
- Medications, chemotherapy
- Oral cancer (uncommon)
When to See a Doctor
- Ulcer lasting > 2 weeks
- Large or particularly painful
- Recurrent or multiple ulcers
- Associated systemic features
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
- AAOM. Oral Resources.