The vaginal opening is always torn during coitus, considering that men’s rough action, women combined with vulvovaginitis, vaginitis and other local inflammation related. 1. male rough action: if the woman is not ready, the local vaginal mucus secretion is insufficient, if the man is too rough or impatient may lead to the local vaginal opening has a slight tear. 2. gynecological inflammation: if women combined with vulvovaginitis, vaginitis and other local inflammation, the local tissue congestion and edema is obvious, the external force is easy to lead to the local tissue small rupture, so combined with local inflammation of women should be prohibited from having sex. For women who always tear the vaginal opening during intercourse, it is recommended that they go to the gynecology department of a regular hospital for consultation and active treatment under the guidance of the doctor after clarifying the cause of the disease.