Ingrown hairs are a common nuisance but rarely serious. They can develop on frequently shaved body parts such as the legs or pubic area. You might also get ingrown hairs after other forms of hair ...

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 follicle, ...