1, the pregnancy period condyloma is generally more secretive, not easy to be found. 2, for the vagina and cervical warts, the treatment process may stimulate the cervix or cause contractions, serious cases of pre-abortion or premature birth, the consequences are unimaginable. 3, pregnant women are often weak, immune system is low, conventional treatment is not effective, after treatment lesions are easy to recur. 4, acromegaly of the birth canal may cause fetal infection during delivery, prone to fetal recurrent respiratory papillomatosis and genital warts around the anus. 5, if the lesions are widespread, involving the vulva, vagina leading to warts blocking the birth canal, easily cause obstructed labor, birth canal lacerations, hemorrhage, secondary infection, etc., endangering the safety of pregnant women, this should be considered cesarean section.