If you have brown discharge near the end of your period, you should not have intercourse when your period is not completely clean. The opening of the uterus is dilated and easily infected with bacteria, which can cause gynecological diseases such as pelvic inflammatory disease, intrauterine infection, tubal infection, etc., and can lead to infertility in serious cases. The endometrium is not fully repaired when the menstruation is not over, and the uterus is stimulated during intercourse, which can lead to rebleeding and prolonged periods, and in severe cases, a feeling of abdominal cramping and lumbar pain, which is detrimental to women’s health. You should have intercourse after your menstruation is completely clean, when the body’s resistance is enhanced, not easy to be attacked by germs, intercourse is also not easy to appear adverse effects. However, we should pay attention to hygiene when we have intercourse, we should wash before and after intercourse, and we can use gynecological lotion to prevent bacteria from breeding and gynecological infection.