What is an inflammation? Created: November 23, 2010; Last Update: February 22, 2018; Next update: 2021. Cologne, Germany: Institute for Quality and Efficiency in Health Care (IQWiG); 2006-. When a wound swells up, turns red and hurts, it may be a sign of inflammation. Very generally speaking, inflammation is the body’s immune system’s response to an irritant. The irritant...
