How is abscess formed?

An abscess forms when an area of tissue becomes infected, typically due to bacteria or other pathogens. The body's immune response sends white blood cells to the site of infection, leading to the accumulation of pus, which consists of dead cells, bacteria, and fluid. This collection of pus creates a localized swelling or cavity, resulting in the formation of the abscess. Factors such as blockages in glands or the skin, foreign bodies, or pre-existing conditions can contribute to the development of an abscess.