What Does a Canker Sore Look Like?

Canker sores, also known as aphthous ulcers, are small, painful ulcers that can develop inside the mouth, on the tongue, or on the inside of the cheeks. Although these sores can be uncomfortable and cause some difficulty in eating and talking, they are not contagious, and usually resolve on their own within a few weeks. It is important to understand what a canker sore looks like so you can properly diagnose and treat the condition.

Common Symptoms of Canker Sores

The most common symptom of canker sores is the appearance of one or more small, round sores on the inside of the mouth. Typically, they are between 1-10mm in diameter and appear white or yellow in the center and surrounded by a red border. Canker sores may be either shallow or deep, and can range from uneasiness to severe pain, depending on the size and location. Other symptoms may include burning, tingling, or numbness in the area before the sore appears, swelling or tenderness of the gums, and a bad taste in the mouth.

Treatment Options

Canker sores resolve on their own within 7–15 days, but there are several treatments that can be used to help manage the pain and reduce the healing time. Over-the-counter medications such as topical gels, ointments, and sprays are available, as well as prescribed medications such as steroids, antibiotics, or antihistamines. Additionally, lifestyle changes such as avoiding certain foods and stress, maintaining good oral hygiene, and eating soft, non-abrasive foods can be helpful in alleviating the symptoms of canker sores.

In conclusion, canker sores, or aphthous ulcers, are painful ulcers that form inside the mouth. They appear as small, round sores with white or yellow centers and red borders, and can range from mild discomfort to severe pain. Treatment options such as topical medications and lifestyle modifications can help reduce the pain and heal the sore more quickly. If the pain or sores persist for more than two weeks, consult your physician for further treatment.