It is important to emphasize that intercourse during menstruation is not allowed, as it can easily cause infections, endometriosis and other special conditions, as well as cross-infection with infectious diseases or STDs. The patient must pay attention to the following aspects when having intercourse during menstruation because of special circumstances: first, avoid having intercourse when the amount of menstruation is high, try to choose intercourse when the amount of vaginal bleeding is low; second, when having intercourse, you must pay attention to hygiene, it is recommended to use condoms to have intercourse to minimize the chances of infection, not paying attention to hygiene during menstruation causes infection, especially easy to cause infection upstream, causing pelvic inflammatory disease The third, after intercourse, must pay attention to whether there is abdominal pain and vaginal bleeding, bad odor, increased secretions and other abnormalities; the appearance of these conditions represents the possibility of infection, and must be actively anti-inflammatory treatment.