If a woman has vaginal pain after sex, it means that there is local inflammation in the vagina. Inflammation itself causes congestion and edema in the vaginal mucosa, which is aggravated by friction after sex, thus causing local pain. In daily life, there is often an increase in vaginal discharge, yellowish color or odor, or occasional itching of the vulva. It is recommended to go to the hospital for a routine examination of the leucorrhoea and to know the degree of congestion of the vaginal mucosa, and then to give treatment according to the results. It is also recommended to pay attention to sexual life and menstrual hygiene in daily life. You should also keep your vulva clean, change your underwear regularly, and don’t get into the habit of using pads.