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Acne (/ ˈ æ k n i / ⓘ AK-nee), also known as acne vulgaris, is a long-term skin condition that occurs when dead skin cells and oil from the skin clog hair follicles. [10] Typical features of the condition include blackheads or whiteheads, pimples, oily skin, and possible scarring.
[18] [19] Acne vulgaris is the disease most commonly associated with C. acnes infection. [ citation needed ] Cutibacterium acnes is one of the most common and universal skin diseases, affecting more than 45 million individuals in the United States. 20% of all dermatologist visits are related to treating acne-related issues.
Acne mechanica is an acneiform eruption that has been observed after repetitive physical trauma to the skin such as rubbing, occurring from clothing ...
Acne fulminans (acute febrile ulcerative acne) Acne keloidalis nuchae (acne keloidalis, dermatitis papillaris capillitii, folliculitis keloidalis, folliculitis keloidis nuchae, nuchal keloid acne) Acne mechanica; Acne medicamentosa; Acne miliaris necrotica (acne varioliformis) Acne vulgaris (acne simplex) Acne with facial edema (solid facial ...
A comedo (plural comedones) is a clogged hair follicle (pore) in the skin. [2] Keratin (skin debris) combines with oil to block the follicle. [3] A comedo can be open (blackhead) or closed by skin (whitehead) and occur with or without acne. [3]
Severe acne usually indicates the necessity of prescription medication to treat the pimples. Prescription medications used to treat acne and pimples include isotretinoin , which is a retinoid , anti-seborrheic medications, anti-androgen medications, hormonal treatments, alpha hydroxy acid , azelaic acid , and keratolytic soaps.
Excoriated acne, also called acne excoriée or picker's acne, is a type of skin picking disorder characterized by the repetitive, compulsive urge to pick, scratch, or squeeze one's pimples. [ 1 ] [ 2 ] This can ultimately lead to physical changes to the skin, such as scarring , and/or further emotional distress.
Rosacea conglobata is a severe rosacea that can mimic acne conglobata, with hemorrhagic nodular abscesses and indurated plaques. [ 26 ] Phymatous rosacea is a cutaneous condition characterized by overgrowth of sebaceous glands . [ 11 ]