👉 A foul fluid, often referred to as serous or purulent exudate, is a mixture of proteins, enzymes, bacteria, white blood cells, and other cellular debris that accumulates in body tissues or cavities. It typically appears as a thick, opaque, and sometimes foul-smelling substance, indicating an inflammatory or infectious process. Serous exudate is usually clear or pale yellow and may contain a higher concentration of proteins and enzymes, while purulent exudate is cloudy and contains more bacteria and white blood cells. This fluid can be found in various parts of the body, such as the skin, lungs, or joints, and its presence often signals an underlying infection or irritation that requires medical attention.
