Sex is a normal physiological phenomenon, so under normal circumstances there is no local pain in the vagina or vulva during intercourse. The first one is that the vaginal opening or the vaginal mucosa is damaged due to the roughness of the sexual intercourse, which is clinically painful. It is recommended to be gentle during sex and if there is more bleeding, it is recommended to go to the hospital to stop the bleeding in time. Secondly, if the vagina is inflamed or the vulva is inflamed, it will be in a state of congestion and edema, and the friction of sexual intercourse will cause the congestion and edema to increase, so pain will also occur.