Inflammation is best described as

• A. A fluid created by infection
• B. The removal of blood or other potentially infectious materials on an item's surface
• C. A condition in which the body reacts to injury, irritation, or infection
• D. Hair like extensions on cells for movement

Answer: (C)

Inflammation is the body's protective response to injury, irritation, or infection. When tissue is damaged, blood vessels widen to bring more blood and immune cells to the area, which helps neutralize irritants and start healing. This process often causes redness, warmth, swelling, and sometimes pain—the signs we look for to know the skin is reacting and healing is underway. In esthetics, recognizing inflammation helps you avoid irritating treated skin and plan care or postponement of procedures until the area has calmed.

The other descriptions aren’t inflammation: a fluid produced by infection sounds like pus or exudate, not inflammation itself; removing infectious materials on a surface refers to cleaning or disinfection; and hair-like extensions on cells for movement describe structures like cilia, not inflammation.