What Is a Pilonidal Cyst? There’s a type of cyst you can get at the bottom of your tailbone, or coccyx. It’s called a pilonidal cyst, and it can become infected and filled with pus. A pilonidal cyst ...

Cellulitis is a common bacterial infection of the skin and the soft tissues underneath. It can become serious if left untreated. Cellulitis can cause swelling, redness, pain, or warmth in the skin.

Boils and cysts both look like bumps on your skin. The main difference between a cyst and a boil is that a boil is a bacterial or fungal infection, and is more likely to be painful. You should not ...