An abscess is a tender mass generally surrounded by a colored area from pink to deep red. Abscesses are often easy to feel by touching. The middle of an abscess is full of pus and debris.
Painful and warm to touch, abscesses can show up any place on your body. The most common sites are in your armpits, areas around your anus and vagina, and in your groin. Inflammation around a hair follicle can also lead to the formation of an abscess.
Abscesses are caused by obstruction of oil or sweat glands, inflammation of hair follicles, or minor breaks and punctures of the skin. Germs get under the skin or into these glands, which causes an inflammatory response as your body’s defenses try to kill these germs.