Aphthae

Aphthae are small roundish wounds that appear in the mouth. They are also called sores or ulcers.

When we rub them with our tongue or our teeth we have the impression that they are spots, but they tend to be very small, tiny.
Aphthae appear on the inner cheeks, the tongue, the palate or the lower gums. They are yellow or white in the middle with a red surround.
Aphthae are uncomfortable, but we usually should not worry about them.

Most of them heal by themselves without leaving any marks.