What Is a Blackhead? - Acne.org
https://www.acne.org/what-is-a-blackhead
WEBApr 2, 2024 · Blackheads, also called open comedones, are brown- or black-colored clogged pores (comedones) that mainly form on the face, but can also be found on the neck, back, chest, shoulders, and upper arms. Dermatologists classify blackheads as “non-inflammatory” acne lesions because they are not red, swollen, or painful.
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