The so-called bumping red means having sex during a woman’s menstrual period. Sex during menstruation is an unhealthy way of behavior, which may have great health risks for the health of the female reproductive system and normal reproductive function. 1, because the opening of the cervix, the endometrial exfoliation forms a trauma, which is easily invaded by various pathogenic microorganisms, causing endometritis, abdominal pain, fever, abnormal leucorrhea and other symptoms Or lead to menstrual disorders and affect normal fertility. 2. prolonged menstrual period and increased menstrual blood, the stimulation of sexual life tends to aggravate the speed of uterine blood circulation, causing increased bleeding and prolonged bleeding time after endometrial exfoliation. 3. cause adenomyosis, secondary dysmenorrhea, infertility, etc. The process of sexual life will affect the discharge of menstrual blood, leading to reflux of menstrual blood and infiltration of shed endometrium into The process of sexual intercourse can affect the discharge of menstrual blood, leading to menstrual blood reflux and the infiltration of shed endometrium into the myometrium and planting in it, causing adenomyosis.