A staph infection usually causes skin infections. There are a number of possible skin infections, like a boil, cellulitis, folliculitis, styes, and more. For a complete list of symptoms read the symptoms of staph infections. One of the most common skin infections caused by staph is a boil, or skin abscess.

A skin abscess is is a lump of pus that is collected under the skin surface. Skin abscesses can occur anywhere on the body and they occur on people of all ages.