Canker sores are painful sores that usually appear inside your mouth, at the base of your gums. While these are not ...

Mouth ulcers, also known as canker sores, are painful lesions that develop inside the mouth, on the tongue, or along the inner cheeks. They can make eating, drinking, and even speaking uncomfortable.

Common mouth ulcers, known as aphthous ulcers or canker sores, can bother us all ... Some ulcers happen when we accidently bite the inside of our cheek but others seem to appear from nowhere ...