Red Seal Cosmetology Practice Exam

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Prepare for the Red Seal Cosmetology Exam. Utilize flashcards and multiple choice questions with hints and explanations to get exam ready. Start your journey towards certification!

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What does an open comedo commonly refer to?

Whitehead
Blackhead
Pustule
Bulla

The correct answer is: Blackhead

An open comedo, also known as a blackhead, is a type of acne lesion that appears as a black or dark bump on the skin. This is caused by the buildup of excess oil, dead skin cells, and bacteria in a hair follicle, which becomes clogged and opens to the surface of the skin. Option A (Whitehead) is incorrect because a whitehead, also known as a closed comedo, is a similar type of acne lesion but appears as a white or flesh-colored bump. Option C (Pustule) is incorrect because a pustule is a type of inflamed acne lesion that contains pus. Option D (Bulla) is also incorrect because a bulla is a large, fluid-filled blister that is not typically associated with acne. Therefore, the correct answer is B (Blackhead).