Ulcers, cracks and sores are common in the mouth and usually they go away after a few days. However, when there are internal diseases, mouth ulcers, sores and cracks can be just the alarm bells ...

A mouth ulcer is a small, painful lesion that forms inside the mouth. They can appear as round or oval sores with a white, yellow, or gray center and a red border. Common locations for mouth ...

Canker sores, also called aphthous ulcers, are small shallow ulcers that occur in the lining of your mouth. “They measure ...