hello natalya ivanovna krug associate professor of the department of dermatovenereology and cosmetologyf the belarusian medical academy after graduation education is the author and author of 24 scientific educational educational and methodological works of four teaching aids and two monographs on various aspects of dermatovenereology and cosmetology is the auditor of the belarusian public organization of dermatovenereologists and cosmetologists members of the european hair research society is a member of the belarusian public organization of dermatovenereologists and cosmetologists is a laureate of the presidential elements as a talented young scientist. let's start with the most common acne. it seems to me a skin disease, but many people think that this is the whole story of adolescence in fact, as far as i know. it's not exactly the case that acne on newborns is what happens to babies, usually in the first second month of life. this is due to a hormonal crisis due to high levels of hormones. at the newborn from mother further. this is a teen window. this is what about 90% of adolescen