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Acne (/ˈækni/ ACK-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 .
Inflammatory acne. Inflammatory acne is exactly what it sounds like: pimples that become inflamed due to bacteria settling inside of them. When this happens, it shows up as reddish lesions like ...
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]
[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.
The athletes and soldiers can get rashes from their equipment and uniforms constantly rubbing their skin while sweating, which turn into acne mechanica lesions. Men tend to be more prone to develop acne mechanica because they produce more oil (also known as sebum) in their glands, even though their glands are actually smaller than women's.
Acne cosmetica is a type of contact acneiform eruption caused by or aggravated by cosmetics. [1] Signs and symptoms include a dense group of similar sized closed comedones and scattered small bumps , typically over the skin where the cosmetic has been applied. [ 1 ]
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Acne necrotica, primary lesions that are pruritic or painful erythematous follicular-based papules that develop central necrosis and crusting and heal with a varioliform scar; Acne rosacea, a red rash predominantly on the face; Acne vulgaris (common acne) Baby acne, a rash seen on the cheeks, chin, and forehead of infants; Blackheads