The pelvic congestion during menstruation will cause pain at the bottom of the waist, which will increase the discomfort after intercourse. The resistance to menstruation decreases, and menstrual blood is very easy to breed bacteria, which can cause retrograde infection and gynecological inflammation, such as tubal inflammation, vaginitis, pelvic inflammatory disease, adnexitis, etc., and stimulate uterine contraction during intercourse, leading to increased menstrual volume and prolonged periods. The menstrual intercourse also has an impact on men’s health and can easily lead to foreskin inflammation. You must have intercourse after the end of the month is completely clean, when the body’s resistance recovers and the uterine lining has recovered and is not susceptible to external influences, and the vulva can be cleaned with gynecological cleansing after careless intercourse during menstruation to avoid breeding bacteria and gynecological diseases. Pay attention to rest, avoid strenuous exercise, if the phenomenon of dysmenorrhea can drink more warm water, use the warm baby hot compress abdomen.