blackhead


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blackhead,

yellowish or blackish plug of material accumulated in the duct of a sebaceous gland. The material consists of keratin (horny cells of the epidermis) and modified sebum (oily secretions of the sebaceous gland). Blackheads are the primary lesions in acneacne,
common inflammatory disease of the hair follicles and sebaceous glands characterized by blackheads, whiteheads, pustules, nodules and, in the more severe forms, by cysts and scarring. The lesions appear on the face, neck, back, chest, and arms.
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. Treatment is the same as for acne, with frequent cleansing of the skin followed by the application of astringent solutions. Plugs should be extracted only by a physician, since damage to the surrounding tissues occasioned by squeezing often leads to scarring.

blackhead

[′blak‚hed]
(medicine)

blackhead

1. a black-tipped plug of fatty matter clogging a pore of the skin, esp the duct of a sebaceous gland
2. an infectious and often fatal disease of turkeys and some other fowl caused by the parasitic protozoa Histomonas meleagridis
3. any of various birds, esp gulls or ducks, with black plumage on the head
References in periodicals archive ?
Shoffman also warns that "spider veins" and "broken capillaries" could be a consequence of using eyelash curlers to remove blackheads, leading to a need for laser therapy in later life to repair the damage.
'I was a of sharing videos Blackheads aren't the kind of condition dermatologists usually deal with because they can be time-consuming and expensive to remove.
Dermatologists use chemical peels with great caution to treat two types of acne - blackheads and papules.
Historically, blackhead disease could be readily treated or prevented by the use of nitroimidazole drugs (Lucas, 1962; van der Heijden and Landman, 2007; Reynolds et al., 2009).
The presence of blackheads usually amounts to nothing more than a cosmetic problem, says William H.
Blackhead - or histomoniasis - is a disease which attacks the digestive tract of turkeys.
Countryside: Re: Blackhead in turkeys 81/5:83: Controlling blackhead disease will be very difficult in a free range system.
Acne consists of blackheads, whiteheads, pimples, and sometimes, deeper boil-like lesions called nodules.
Fact.MR has announced the addition of the "Blackhead Removing Vacuum Market Forecast, Trend Analysis & Competition Tracking - Global Market Insights 2018 to 2028"report to their offering.
[ClickPress, Wed Jul 03 2019] The blackhead removing vacuum market in South Asia region is growing moderately, it is expected to increase in future due to improvement in the living style of people.
Blackhead Path lies directly north of Whitehead, Co.