Why do I get painful red bumps on the back of my tongue?

Why do I get painful red bumps on the back of my tongue?

1. Introduction Painful red bumps on the back of the tongue are usually inflamed circumvallate or foliate papillae. These are natural anatomical structures that contain taste buds and serous glands. Under normal circumstances, they are barely noticeable. However, they can swell significantly in response to viral infections, localized trauma from acidic foods, or gastrointestinal reflux. … Read more