Causes of acne

In daily life, we often see youthful faces around us. In fact, many adolescents are prone to acne on their faces. What is the reason? Our bodies easily excrete oil on our faces in daily life. If we do not clean our faces in time, and because of our violent treatment of acne, it is easy to turn into acne.

Acne is a skin problem that is difficult to recover from. Acne creates a barrier in patients' daily communication. So how should we relieve acne in daily life? Only by deeply understanding the causes of acne can we help patients relieve symptoms and restore their normal face.

The occurrence of acne is closely related to factors such as excessive sebum secretion, blockage of the sebaceous gland ducts of the hair follicles, bacterial infection and inflammatory response. After entering puberty, the level of androgens, especially testosterone, in the human body increases rapidly, promoting the development of sebaceous glands and producing a large amount of sebum. At the same time, abnormal keratinization of the sebaceous gland ducts of the hair follicles causes blockage of the ducts, hindering the excretion of sebum and forming keratin plugs, also known as micro-acne. Various microorganisms, especially Propionibacterium acnes, multiply in large numbers in the hair follicles. The lipase produced by Propionibacterium acnes breaks down sebum to produce free fatty acids, while also attracting inflammatory cells and mediators, ultimately inducing and aggravating the inflammatory response.

Clinical manifestations

Skin lesions often occur on the face and upper chest and back. Non-inflammatory lesions of acne appear as open and closed comedones. The typical skin lesions of closed comedones (also known as whiteheads) are skin-colored papules about 1 mm in size with no obvious hair follicle openings. Open comedones (also known as blackheads) appear as dome-shaped papules with significantly dilated follicular openings. Acne will further develop into various inflammatory skin lesions, manifesting as inflammatory papules, pustules, nodules and cysts. Inflammatory papules are red, with a diameter ranging from 1 to 5 mm; pustules are uniform in size and filled with white pus; nodules are larger than 5 mm in diameter, feel hard and painful to the touch; cysts are located deeper and are filled with a mixture of pus and blood. These lesions may also fuse to form large inflammatory plaques and sinus tracts. After the inflammatory skin lesions subside, pigmentation, persistent erythema, and depressed or hypertrophic scars are often left behind. Clinically, acne is divided into 3 or 4 grades according to the nature and severity of acne lesions: Grade 1 (mild): only comedones; Grade 2 (moderate): in addition to comedones, there are also some inflammatory papules; Grade 3 (moderate): in addition to comedones, there are also more inflammatory papules or pustules; Grade 4 (severe): in addition to comedones, inflammatory papules and pustules, there are also nodules, cysts or scars.

If we read carefully, we will find that acne does not occur accidentally, and we must develop the habit of caring for our cheeks in daily life. Acne patients should receive timely treatment. In addition to appearing on the face of adolescents, we'd better do a good job of cleaning the face. If you find any adverse symptoms, you should go to the hospital for examination in time.