Inflammation comes in two forms: acute or chronic. The acute type takes place as an initial response of the body to harmful stimuli. It involves the mobilization of plasma (the yellow-colored liquid component of blood) and white blood cells from the blood into the injured tissue, as just described. That’s okay. You want that to happen.
Then there is chronic (prolonged) inflammation. That you don’t want Chronic inflammation means a progressive shift in the type of activity going on at the site of inflammation. You get simultaneous destruction and healing of the tissue, but a harmful free-radical encroachment into healthy, surrounding territory. The destruction derby continues, and it can seriously harm you.