It is not possible to have intercourse during menstruation because during menstruation, the uterine orifice is open and intercourse during menstruation can easily cause inflammatory upstream infection, leading to endometritis, pelvic inflammatory disease, and even inflammation of the fallopian tubes, which can cause infertility. The fact that you are having intercourse during your menstrual period can even lead to reflux of menstrual blood, causing endometriosis, adenomyosis, and the usual menstrual cramps, so women should never have intercourse during the period when they are not clean. During the menstrual period, women should also pay attention to keeping their vulva clean and hygienic, wash their vulva often, change their sanitary pads regularly, pay attention to strengthening nutrition, eat more nutritious food, such as lean meat, eggs, milk, etc., eat more seasonal fruits and vegetables, such as apples, bananas, grapes, etc., forbidden to eat cold, spicy and stimulating food.