Minnie, 18 years old, recently had a personal question that bothered her, that is, can she wash her “butt” when she has her period? If you don’t wash it, you’ll feel dirty, and after you wash it, you’ll find that your menstruation has decreased. Dr. Chen Wenzeng of the Department of Obstetrics and Gynecology at the Red Cross Hospital in Hangzhou said that menstruation is a physiological phenomenon unique to women, and that during menstruation, the body will undergo some changes: the endometrium sheds leaving a traumatic surface; the cervical opening is slightly open; the vaginal acidity decreases, weakening the natural barrier function; in addition, women are easily fatigued during menstruation and their resistance weakens, so special attention needs to be paid to hygiene during this period. During menstruation, you must not take a bath or sitz bath, because the cervix is open at this time, so it is easy to make contaminated water enter the uterine cavity, which can lead to inflammation of the reproductive organs. If you want to wash, it is best to scrub the perineum with a clean towel and warm water, wash from front to back, not from back to front, so as not to bring the bacteria near the anus to the vulva and cause infection. If you feel that your menstrual flow is not normal in recent times, you need to go to the hospital for further examination and treatment.