What is Abscess?

An abscess is a painful, swollen pocket of pus that forms under the skin or inside the body, usually as a result of a bacterial infection. Skin abscesses are common and typically appear as a red, warm, tender lump that may grow larger over time, sometimes with a visible head.

Small skin abscesses sometimes drain and heal on their own, but many need medical treatment — usually a small procedure to drain the pus, sometimes alongside antibiotics — to fully resolve and prevent the infection from spreading.