It is forbidden to have intercourse during the period of vacation. If you have intercourse during your period, you should clean your external genitalia immediately after intercourse to avoid causing infection in the uterine cavity, and you can take oral antibiotics to prevent infection. In general, oral cephalosporin or levofloxacin is used for treatment. If it is an occasional 1 time intercourse, then it is not a big problem. If it is frequent, then it can lead to a series of diseases, such as endometritis, chronic pelvic inflammatory disease, tubal inflammatory disease, ovarian inflammatory disease, patients will have abdominal pain, lumbago, serious can cause infertility, or easy to cause ectopic pregnancy. Therefore, during the period of vacation, we are prohibited to have intercourse.