Women have intercourse on the last day of menstruation, patients should not be too alarmed, first of all, to observe the vaginal bleeding whether there is an increase in the phenomenon. Secondly, the amount of leukorrhea should be observed to see if there is any increase in the amount of leukorrhea, and if there is any redness, swelling and itching of the vulva. If the amount of vaginal bleeding and the amount of leukorrhea are normal, and there is no redness, swelling and itching of the genitals, then there is no need to worry about this situation, and pay attention to maintaining personal hygiene. If there is a lot of vaginal bleeding, itching and increased leukorrhea, it is a sign of genital infection, in which case the patient should go to the hospital in time for a relevant examination, and actively use antibiotics for treatment. Women should pay attention to avoid coitus and sexual intercourse during menstruation, so as not to lead to the occurrence of gynecological inflammation.