Blackhead
A comedo (plural comedones) is a clogged hair follicle (pore) in the skin. Keratin (skin debris) combines with oil to block the follicle. A comedo can be open (blackhead) or closed by skin (whitehead) and occur with or without acne. The word comedo comes from Latin comedere 'to eat up' and was historically used to describe parasitic worms; in modern medical terminology, it is used to suggest the worm-like appearance of the expressed material.
The chronic inflammatory condition that usually includes comedones, inflamed papules, and pustules (pimples) is called acne. Infection causes inflammation and the development of pus. Whether a skin condition classifies as acne depends on the number of comedones and infection. Comedones should not be confused with sebaceous filaments.
Comedo-type ductal carcinoma in situ (DCIS) is not related to the skin conditions discussed here. DCIS is a noninvasive form of breast cancer, but comedo-type DCIS may be more aggressive, so may be more likely to become invasive.
White Line
- 2023-11-01T00:00:00.000000Z
Black Bonus
- 2018-01-01T00:00:00.000000Z
Full Flavor
- 2018-01-01T00:00:00.000000Z
RELAX
- 2018-01-01T00:00:00.000000Z
Deep
- 2007-06-05T00:00:00.000000Z
Ten
- 2005-08-16T00:00:00.000000Z
Handmade
- 2003-06-10T00:00:00.000000Z
Basic
- 2000-12-15T00:00:00.000000Z
Pure
- 1999-05-13T00:00:00.000000Z
เหลียวหลัง
- 2022-05-15T00:00:00.000000Z
สติค่ะสติ
- 2020-11-04T00:00:00.000000Z
Black Bonus
- 2018-01-01T00:00:00.000000Z
ไม่บอก
- 2018-01-01T00:00:00.000000Z
เปลวไฟ
- 2016-01-26T00:00:00.000000Z
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