It was found that the perinatal factor and infections appear to be most common of the various causes.

在引起MR的各种病因中，以围产因素和感染中毒所占的比例大。

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Conclusion Pregnancy complicated syphilis had severe influence on death of the perinatal, which was an important factor on spreading congenital syphilis.

结论妊娠合并梅毒是严重造成围产儿死亡及传播先天性梅毒的重要因素。

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The main reason of perinatal death were umbilical cord factors, fet al malformation, preterm labor, placental factor, oligohydramnios, severe preeclampsia and pregnancy complicated syphilis.

围生儿死亡主要原因依次为：脐带因素、胎儿畸形、早产、胎盘因素、羊水过少、重度子痫前期、妊娠合并梅毒。

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The main reason of perinatal death were umbilical cord factors, fet al malformation, preterm labor, placental factor, oligohydramnios, severe preeclampsia and pregnancy complicated syphilis.

围生儿死亡主要原因依次为：脐带因素、胎儿畸形、早产、胎盘因素、羊水过少、重度子痫前期、妊娠合并梅毒。

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