1. Excessive estrogen: During the period from ovulation to menstrual period, the content of androgen or the ratio of androgen to estrogen is relatively high, which leads to the corresponding enhancement of sebaceous gland activity, which is easy to get acne. 2. Hair follicle blockage: Some studies have found that the lipid composition on the skin surface before menstruation is obviously different from other periods. Hair follicle sebaceous duct is in the first stage of menstrual cycle.

15~20

Day (before menstruation) is the smallest, sebum secretion is easily blocked, leading to aggravation of acne before menstruation. 3. Decreased secretion of lutein hormone and egg hormone: One week before menstruation, the secretion of lutein hormone and egg hormone decreased, and the physical and mental state began to be unstable. Skin is easy to be allergic, become rough, increase oil secretion, and easily get acne. In fact, the above reasons are summarized as endocrine abnormalities. Therefore, the treatment of physiological acne must not be equal to ordinary acne. At the same time of acne, we must pay attention to the conditioning of female endocrine. Only when endocrine is balanced can we control new acne. Matters needing attention

Try to avoid makeup and remove makeup thoroughly. Pay attention to rest, get enough sleep, keep your mood stable and happy, and reduce skin changes before and after menstruation.