An abscess is a localized collection of pus that forms within the body due to infection, inflammation, or blockage. It typically occurs when bacteria invade tissue, leading to the body's immune response, which results in the accumulation of white blood cells, dead tissue, and bacteria. Abscesses can develop in various parts of the body, including the skin, teeth, and internal organs. Symptoms of an abscess may include swelling, redness, pain, and warmth in the affected area. In some cases, fever and chills can also occur. Treatment often involves draining the pus and may require antibiotics to eliminate the underlying infection. Proper hygiene and care can help prevent abscess formation.