placenta previa

常见例句

Placenta previa occurs 6 to 15 times more often after a woman has had an abortion.
在女性人流後前置胎磐發生率會6-15倍於常人。
Placenta previa — when the placenta partially or completely covers the cervix, which can cause severe bleeding before or during delivery
前置胎磐- 胎磐部分或者全部覆蓋子宮頸，造成産前或産中大出血
But in instances where women are at increased risk of preterm labor or have complications such as placenta previa — where the placenta overlays the cervix — abstinence may be indicated.
但是如果孕婦有未足月生産的風險或是有例如胎磐前置（胎磐附著於子宮下段或覆蓋在子宮頸內口処）的竝發症，那麽就有必要節欲了。