Which term is technically used to describe a whitehead or blackhead?

The term that describes a whitehead or blackhead is "comedone." This term encompasses both these types of acne lesions. A comedone forms when a hair follicle becomes clogged with oil, dead skin cells, and bacteria.

When the clogged material is exposed to air, it oxidizes and turns black, resulting in what is commonly referred to as a blackhead. Conversely, if the clogged follicle closes and becomes inflamed, it can lead to the formation of a whitehead, which appears as a small, raised bump that is usually white or skin-colored. Understanding the nature of comedones is important in both skincare and barbering practices, as they can affect the health and appearance of the skin.

In contrast, a pustule refers to a raised bump filled with pus, often seen in inflamed acne; a papule is a small, raised lesion that does not contain pus; and folliculitis refers specifically to the inflammation of hair follicles. Each of these terms describes different skin conditions but does not accurately define the specific condition of whiteheads and blackheads.