What is a common manifestation of a pus-filled lesion?

A common manifestation of a pus-filled lesion is a pustule. Pustules are small, raised, fluid-filled lesions that contain pus, which is a thick fluid made up of dead white blood cells, bacteria, and cellular debris. They are typically associated with inflammatory skin conditions such as acne, folliculitis, and infections.

The presence of pus is a key characteristic that distinguishes pustules from other types of skin lesions. For instance, cysts are closed sacs that may contain fluid or semi-solid material but are not specifically pus-filled. Comedones, such as blackheads and whiteheads, are clogged hair follicles and do not contain pus; they are primarily composed of sebum and dead skin cells. Fissures are linear cracks in the skin that do not involve pus or fluid accumulation.

Understanding the particular characteristics of these lesions helps in accurate diagnosis and treatment within skin care and aesthetics practice.