Acne is a chronic inflammatory disease involving the hair follicle and sebaceous gland, which has certain disfigurement. All ages can suffer from the disease, but most of them are teenagers. It is prone to sebum overflow on the face, neck, chest and back. The pathogenesis of acne is mainly related to the increase of androgen and sebum secretion, abnormal keratinization of hair follicle and sebaceous gland duct, infection of Propionibacterium acnes and fungi, and inflammatory reaction. Some cases are also related to genetic, immune and endocrine disorders. In addition, unreasonable diet structure, improper use of cosmetics and skin care products, mental tension, anxiety, endocrine diseases, improper use of drugs, etc. can induce or aggravate the disease. Therefore, it is recommended that the dermatology clinic should see a doctor and conduct relevant examinations when necessary.
