abscess Abscess Last reviewed: August 14, 2010. An abscess is a collection of pus in any part of the body that, in most cases, causes swelling and inflammation around it. Causes, incidence, and risk factors Abscesses occur when an area of tissue becomes infected and the body's immune system tries to fight it. White blood cells move through the walls of the blood vessels into the area of the infection an.. 2012. 9. 17. 이전 1 다음