Skin boils are a common condition caused by an infected hair follicle. A skin boil, also known as a furuncle, presents as a swollen and painful red bump. If bacteria infect a hair follicle on the ...

Boils develop when the hair follicle on your skin becomes infected by bacteria. The most common bacteria that cause boils, known as Staphylococcus aureus, lives on most people's skin normally and ...

They also have different causes. Boils are caused by infections that can cause symptoms in other parts of the body, while cysts are caused by a buildup of fluid or a ruptured pore. Common signs of ...