Learn about canker sores (aphthous ulcer) causes, like allergies, immune disorders, vitamin and mineral deficiencies, smoking, stress, and female sex hormones.

Alternative Names Return to top. Aphthous ulcer; Ulcer - aphthous. Definition Return to top. A canker sore is a painful, open sore in the mouth, which is white or ...

Learn the causes (tomatoes, toothpaste), symptoms, treatment and prevention of canker sores (mouth ulcers). They're not the same as cold sores and oral herpes.

Information about canker sores from the American Academy of Family Physicians. ... Canker Sores: What Are They and What Can You Do About Them?

Canker sores are small shallow ulcers that appear in the mouth. Learn how to prevent and treat canker sores.

An aphthous ulcer (aka canker sore) is a type of oral ulcer which presents as a painful open sore inside the mouth or upper throat, caused by a break in the mucous membrane.

What causes canker sores (aphthous ulcers)? What are the risk factors for triggering outbreaks of these mouth ulcers?

Answers to your questions about canker sores and more! Information you can trust: patient guides, the latest news, tips, tools, animations and newsletters.

Find out what causes canker sores, how to treat them and how to prevent them from coming back. ... Also known as recurrent minor aphthous ulcers or recurrent aphthous stomatitis ...

Canker sore ? Comprehensive overview covers causes, treatment and prevention of these painful mouth sores.