Arizona Esthetics State Board Practice Exam

What is another name for a whitehead?

1. Closed comedo

2. Open comedo

3. Acne vulgaris

4. Blackhead

The correct answer is: Closed comedo

A whitehead is commonly referred to as a closed comedo. This term accurately describes the condition where a hair follicle becomes clogged with sebum, dead skin cells, and bacteria, resulting in a small, raised bump on the skin that remains closed at the surface. The closed nature of the comedo prevents the contents from being exposed to air, which is why it appears white or flesh-colored. Recognizing the terminology related to comedones is important for understanding acne conditions. An open comedo, on the other hand, is what is typically known as a blackhead; it is open at the surface and the oxidized sebum gives it a dark appearance. Acne vulgaris refers to the broader term encompassing all forms of acne, including open and closed comedones, along with papules and pustules. Although a blackhead is also a type of comedo, it is specifically the open variety, which makes this distinction relevant.