What is acne

summary

A few years ago, there were always pimples on the face, which looked like red powder. It was a case of acne. It was particularly ugly. Let's introduce what acne is?

What is acne

First of all, acne is also a kind of skin disease called folliculitis or acne. Acne is a chronic inflammatory skin disease of hair follicle sebaceous unit, which mainly occurs in teenagers. It has a great impact on Teenagers' psychology and social life, but it can be naturally alleviated or cured after adolescence. The clinical manifestations are characterized by acne, papules, pustules, nodules and other pleomorphic lesions.

Secondly, the occurrence of acne is closely related to excessive sebum secretion, blockage of sebaceous duct in hair follicle, bacterial infection and inflammatory reaction. After puberty, the level of androgen, especially testosterone, increases rapidly, which promotes the development of sebaceous glands and produces a lot of sebum. At the same time, the abnormal keratosis of sebaceous duct of hair follicle results in duct blockage, sebum excretion obstacle, and the formation of cutin plug, namely micro acne. A variety of microorganisms, especially Propionibacterium acnes, proliferate in hair follicles. The lipases produced by Propionibacterium acnes decompose sebum to produce free fatty acids, chemotactic inflammatory cells and mediators, and eventually induce and aggravate the inflammatory response.

Finally, the skin lesions mainly occurred on the face, upper chest and back. Non inflammatory lesions of acne are characterized by open and closed acne. The typical lesions of closed acne (also known as white head) are skin papules about 1 mm in size, without obvious hair follicle openings. Open acne (also known as blackhead) is characterized by a domed papule with a prominent dilated follicle opening. Further development of acne will evolve into a variety of inflammatory lesions, manifested as inflammatory papules, pustules, nodules and cysts.

matters needing attention

Acne skin disease should pay attention to facial cleaning, especially to ensure adequate sleep every day, do not stay up late, in the daily diet to eat more light food, do not drink.