- Oral ulcers are small painful sores that develop inside the mouth.
- They are usually round or oval in shape and can appear on the tongue, inside the cheeks, back of throat or inner lips.
- Common causes of oral ulcers include injury to the mouth, stress, hormonal changes, vitamin deficiency and a reaction to certain foods or products.
- In most cases, oral ulcers are benign and resolve on their own within a week or two.
- In rare cases, oral ulcers may be a symptom of a more serious underlying condition, such as a viral or autoimmune disease, and may require medical treatment. It is recommended to see a dentist or doctor if the ulcers persist or become frequent.