Acne occurs in adolescents and adolescents, so it is also called “acne”, and the incidence rate can reach about 85%.
Acne is not a life-threatening disease, but it can affect appearance, cause anxiety, depression, and social maladjustment, significantly impacting quality of life.
Imagine getting up early in the morning and seeing two huge acne on the tip of your nose, nowhere to hide, how can you be in a good mood?
Image source: Zhanku Hailuo
Why does acne predominate in teenagers? Why do “pimples” still appear after puberty? Today we will briefly talk about the causes of acne.
Acne is a multi-causal skin disease that involves three main areas.
Accomplice: Bacillus acnes
Acne has always been thought to be caused by the bacteria acnes. Now, we have realized that acne bacillus is one of the normal flora on the skin surface, but it is naturally oleophilic.
If you have well-developed sebaceous glands that produce a lot of oil, they attract acne bacteria, whose metabolites can then induce and exacerbate local inflammation.
So, acne bacillus, although not the “culprit”, is also an “accomplice”.
The culprit: abnormal follicular keratinization
Bacillus acnes is an anaerobic bacteria, it can multiply in large numbers, but it still needs to be blocked by the hair follicles. So, what’s blocking the follicles? In addition to oil and bacteria, there is a lot of keratinous debris.
If there is no bacterial infection, just acne, when combined with bacterial infection, inflammatory papules form.
The abnormal keratinization of the hair follicle opening is the real culprit in causing acne.
Behind the scenes: Hypersebum production
When will there be excess sebum secretion?
Some people say, eat a lot? Some people say, don’t like to wash your face? In fact, these are not the most important.
The secretion of sebaceous glands is directly affected by androgens. Regardless of male or female, there is a certain amount of androgens in the body. After entering puberty, androgen soars rapidly, and along with growing taller, many chubby sebaceous glands also grow.
Produces a lot of sebum, and the whole face is oily. Even if there is no acne bacteria infection, the oil alone can cause acne.
Dr. Clove invited Wang Lu, Deputy Chief Physician, Department of Dermatology, Sichuan Maternal and Child Health Hospital this Friday to talk about “acne” related content.