Acne is a common annoyance for young men and women, so do you know this about acne? What is acne? Acne, scientifically known as acne, is a chronic inflammatory disease of the sebaceous glands of the hair follicles, and many people have been victimized by it during their teenage years. Acne can manifest as pimples, papules, pustules, cysts, and scarring. Although it is not a serious disease in itself, it affects the face value very much, and may also lead to depression, low self-esteem and other psychological problems, the harm should not be underestimated. Who is prone to acne? People whose parents have a history of acne are more prone to the disease, people who stay up too late, have a high level of stress, have a sweet tooth, use powdery or oily cosmetics (not thoroughly unloaded) are more prone to acne, and people who have too much sun exposure, air pollution, and who are taking medications (e.g., glucocorticosteroids) are also prone to acne. How does acne occur? Androgens play a large role in the appearance of acne. Either elevated androgen levels, an increased androgen/estrogen ratio, or increased sensitivity of the sebaceous glands to androgens may increase sebum production. In addition, androgens cause increased keratinization of follicular sebaceous gland ducts, thickening of the follicular walls, and smaller ductal diameters leading to difficulty in sebum elimination. When sebum production increases and sebum elimination is blocked, sebum is deposited in the ducts, forming sebaceous plugs, which are slightly raised on the skin surface and are manifested as acne. After the formation of acne, bacteria on the surface of the skin are also involved, the most common of which is Propionibacterium acnes, whose enzymes break down sebum and produce substances such as free fatty acids, which stimulate the skin to produce an inflammatory reaction, gradually appearing as pimples and pustules. As the inflammatory reaction worsens, the deeper tissues of the skin become involved, and nodules, cysts, and scarring can form. What do I need to pay attention to for acne-prone skin? Avoid excessive cleansing, wash your face 2 times a day, or 3 times if you have more oil, and the water temperature should not be too cold or too hot. It is recommended to use cleansing products containing salicylic acid; when there is too much oil, you can use a foaming cleanser with strong oil-removing ability; when there are more pimples, you can intermittently use a cleanser containing scrub particles, which helps to unclog the mouth of the hair follicles. Remember to use a refreshing oil-control cream after cleaning, to prevent the skin from excessive secretion of oil Diet pay attention to eat less sweets, eat more fruits and vegetables rich in vitamins, you can usually drink some heat detoxification of green tea, chrysanthemum tea and so on. It is also very important for acne treatment to control emotions, ensure sleep, avoid mental stress, and pay attention to sun protection and skin moisturizing.