Mothers who are infected may pass the spirochetes to fetuses in the third trimester, resulting in congenital syphilis. 晚期妊娠患者可传播给胎儿，从而使新生儿患先天性梅毒。
Congenital syphilis says the embryo passes syphilis again, it is syphilis helicoid to infect fetal syphilis via placenta. 先天梅毒又称胎传梅毒，乃梅毒螺旋体经胎盘传染给胎儿之梅毒。
