The impact of intercourse during menstruation on the body is great, pelvic congestion during menstruation will appear waist and bottom pain, after intercourse will aggravate the discomfort. The resistance of the menstrual period is reduced, the menstrual blood is very easy to breed bacteria, coitus will cause retrograde infection triggered gynecological inflammation, such as tubal inflammation, vaginitis, pelvic inflammation, adnexitis, etc., coitus will stimulate the uterus contraction, resulting in increased menstrual flow, menstrual period prolongation, etc.. Menstruation coitus also has an impact on men’s health, easy to lead to circumcision, must be completely clean at the end of the month after coitus, at this time the body’s resistance to recovery, the lining of the uterus has also been restored, is not easy to be affected by the outside world, the menstrual period can be used to gynecological cleaning after accidental coitus to clean the vulva, so as not to breed bacteria, suffering from gynecological diseases. Pay attention to rest, avoid strenuous exercise, if the phenomenon of menstrual cramps can drink more warm water, with warm baby hot compress abdomen.