Bleeding after intercourse may stop on the same day, or it may continue all the time, so the bleeding time is not certain. The cervix and vaginal wall are very rich in blood vessels, excessive and frequent stimulation of the cervix and vaginal wall during coitus may cause a small amount of bleeding, which usually heals within 3 days and does not affect the health of the body. Women bleeding after coitus may also have cervical diseases, such as cervical polyps, cervical cancer, etc. If the damage to the cervical lesion site is small, the bleeding is small and may soon stop on its own, but the lesion site is still there, and bleeding may still occur afterwards. The patient is occurred after coitus vaginal bleeding, all need to pay attention to, all must do cervical screening, so as not to cause missed diagnosis. If it is bleeding after intercourse in pregnancy, it may be the occurrence of preeclampsia, after bed rest, the bleeding may stop, but it may also continue to bleed, or even bleeding aggravation, the occurrence of inevitable abortion. Bleeding after coitus is an abnormal situation, women who have this situation, need to consult a doctor in time to check, clarify the cause of the disease, targeted treatment.