Classic lingual papillitis causes a few red, whitish, or yellow-colored raised bumps on one area of the ... changes or exposure to potential oral (mouth) irritants. In most cases, these steps ...

Canker sores Canker sores are white lesions inside the mouth that are typically painful, says Sage Pollack, DMD, dentist and founder of Dentistry of Colorado. They might appear as a bump or as a ...