What are the harms of having sexual intercourse before the menstrual period is completely clean?

Patient's question:

No

Doctor's answer:

During menstruation, sexual intercourse can easily lead to reproductive and urinary tract infections, such as pelvic inflammatory disease, endometritis, endometriosis, cervicitis, vaginitis, urinary tract infections, and excessive menstrual flow and prolonged periods. Therefore, for the sake of health, it is best to abstain from sexual activity during menstruation.