Infected cysts start to resemble boils ... while cysts are caused by a buildup of fluid or a ruptured pore. Common signs of these conditions include the following. There are significant ...

Pilonidal sinus—also called a pilonidal cyst—is a skin infection that occurs in or around the crease of your buttocks. This condition happens when hair, skin cells, and dirt clog a hair ...

Similar to nodules, cysts are caused by clogged pores beneath the surface of the skin. They contain fluid or pus, and they may appear large, red, and are typically painful. Like nodules ...