Patient's question:
NoDoctor's answer:
Menstruation is prohibited during sexual intercourse because during the menstrual period, the endometrium forms wounds, and the immunity of various systems decreases, making it easy to cause inflammatory infections, leading to conditions such as endometritis, pelvic inflammatory disease, and adnexitis. Additionally, during female sexual arousal, uterine contractions may cause menstrual blood to flow back into the pelvic cavity, leading to the implantation of endometrial tissue and resulting in endometriosis. Endometriosis may potentially affect fertility.