Inflammation is a localized physical condition, the immune reaction of the body tissues towards the harmful stimuli such as pathogens, damaged cells or irritants. It is considered as protective response which involves immune cells, blood vessels and molecular mediators. During inflammation the specific body part becomes reddened, swollen, hot and often painful. Its main aim is to remove the early cause of cell injury, clearance of necrotic cells and tissue damaged from initial insult and the inflammatory process, and to trigger tissue repair.Inflammation does not mean infection, even when an infection causes inflammation. Infection is caused by bacterium, virus or fungus, while inflammation is body's response to it.