Ways to keep women healthy when having sex include paying attention to hygiene, avoiding unclean sex, and controlling the frequency of sex. 1. Pay attention to hygiene: women should pay attention to physical hygiene before and after sex, wash the perineum and change underwear frequently, and avoid sex during menstruation. 2. Avoid unclean sex: women should avoid unclean sex, because unclean sex may be infected with warts, vaginitis, syphilis and other diseases. 3. Control the frequency of sex: women should also limit the number of sex, frequent excessive sex may lead to repeated vaginal congestion, easy to induce gynecological diseases. If a woman has vaginal itching and increased vaginal discharge after sex, she may be suffering from gynecological diseases, and it is recommended that she seek medical examination and treatment.