常見(jiàn)例句雙語(yǔ)例句Placenta previa occurs 6 to 15 times more often after a woman has had an abortion.在女性人流后前置胎盤(pán)發(fā)生率會(huì)6-15倍于常人。Placenta previa — when the placenta partially or completely covers the cervix, which can cause severe bleeding before or during delivery前置胎盤(pán)- 胎盤(pán)部分或者全部覆蓋子宮頸,造成產(chǎn)前或產(chǎn)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產(chǎn)的風(fēng)險(xiǎn)或是有例如胎盤(pán)前置(胎盤(pán)附著于子宮下段或覆蓋在子宮頸內(nèi)口處)的并發(fā)癥,那么就有必要節(jié)欲了。 返回 placenta previa