Before doing a cervical biopsy in the clinical often do a routine test of the leukorrhea, normal conditions before you can make an appointment to do a biopsy time, and it is recommended that after the test of the leukorrhea to the cervical biopsy before you can not cohabit. If coitus once in the vagina infected with pathogenic bacteria doctors do not know, biopsy itself is the tissue out of the local trauma, pathogenic bacteria along the trauma will be infected, causing serious clinical consequences. So before the biopsy can not cohabit, and in the biopsy after half a month can not cohabit, the wound is to heal, after the healing of the scabs fall off, in order to achieve the purpose of complete healing. If there is no healing before coitus, it will also cause local infection, so before and after the biopsy can not coitus.