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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]
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 ...
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 .
Rosacea. What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center.Easy flushing, a stinging sensation, and small, pus-filled pimples are other common ...
Acne keloidalis nuchae most commonly presents itself in individuals aged 13 to 25. [3] The disease is closely related to pseudofolliculitis barbae and both occur frequently in black men in the military, where it is so common that the US Army has developed official protocols for management. [ 4 ]
These kinds of acne flare-ups can also derive from sweat during a workout, so to avoid sweat-related acne near the hairline, try showering and washing your hair immediately after hitting the gym.
Acne vulgaris Dissecting cellulitis of the scalp Rhinophyma. Acneiform eruptions are caused by changes in the pilosebaceous unit. [27] [28] Acne aestivalis (Mallorca acne) [nb 1] [nb 2] [nb 3] Acne conglobata; Acne cosmetica (cosmetic acne) Acne fulminans (acute febrile ulcerative acne)
Acne conglobata is a severe, inflammatory variant of acne. Inflammatory papules, papulonodules, nodules and pustules may coalesce, and abscesses in the skin may form sinuses that interconnect. [4] Bleeding or draining of acneiform plaques may be present. The systemic findings seen in acne fulminans are not present.