Why does bleeding occur during sexual intercourse when menstruation is about to come in a few days?

Patient's question:

No

Doctor's answer:

Generally, there are many reasons that can cause bleeding after cohabitation, such as vaginal wall abrasion, or cervical diseases such as: cervical erosion, cervical polyps, cervical cancer, vaginitis, vaginal wall abrasion, abnormal menstruation, ovulation bleeding, etc. It is recommended that you go to the hospital for examination and treatment after excluding physiological bleeding.