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aphthous ulcer OR ulcer
- A canker sore is a painful, open sore in the mouth. Canker sores are white or yellow and surrounded by a bright red area. They are ...
- Canker sores (Aphthous ulcers) are very common. Typically, they are a shallow ulcer with a white or whitish/yellow base surrounded by ...
- There are different types of mouth sores. They can occur anywhere in the mouth including bottom of the mouth, inner cheeks, gums, ...
