What is a macule?

A macule is defined as a flat spot or discoloration on the skin, which is why the selected answer is accurate. This term is used in dermatology to describe a localized area of color change on the skin surface that does not involve any elevation. Macules can vary in color—ranging from red and brown to blue—and they can be a result of various factors, such as pigmentation changes, vascular alterations, or dermatological conditions.

In contrast to other skin lesions that may be raised, such as plaques or papules, macules are characterized by their flatness and lack of texture difference from the surrounding skin. This distinction is important for proper diagnosis and understanding of various skin conditions.