Abscess If you notice a painful bump on the roof of your mouth, it could be an abscess—an infection that forms when bacteria invade the soft tissues. According to Dr. Ross, abscesses often develop due ...

Fordyce spots are white or yellow bumps that commonly appear on the edge of the lip. You may also have them on the inside of ...

Canker sores Canker sores are white lesions inside the mouth ... appear as a bump or as a shallow ulcer, and they can vary in size. They may affect the gums, the inside of the cheeks, or the ...