A skin abscess is a painful, pus-filled bump caused by bacteria like Staphylococcus aureus entering the skin through cuts or nicks. You’re at higher risk if you have diabetes, a weakened immune system ...

An abscess occurs when an infection causes a pocket of pus to develop. Abscesses can develop on the skin, in the mouth, or inside the body. Bacterial infections typically cause abscesses. Pus develops ...