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大约有10%的胎儿对母体“恋恋不舍”孕期超过294天尚未问世,这在医学上叫做过期妊娠,俗称“懒月子”。据了解,有些妇女对过期妊娠不以为然,反而认为腹中的娇儿在母体内多呆一些时间能吸收更多的营养,会更结实。其实不然,由于过期妊娠,胎儿常发育较大,加上过期胎儿颅骨大而坚硬,经过产道分娩时不易变形,从而增加了难产、产伤和胎儿窒息死亡的危险。过期妊娠时,孕妇容易出现胎盘功能减退,即成熟的胎盘开始老化,脐带血氧含量及饱和度降底,而成熟胎儿对氧
About 10% of the fetus on the maternal “reluctantly ” more than 294 days of pregnancy has not yet come out, which is called medical expired pregnancy, commonly known as “lazy month.” It is understood that some women do not agree with the expired pregnancy, but rather that the abdomen Jiao Er in the mother to stay for some time to absorb more nutrients, will be more solid. In actual fact, due to outdated pregnancy, the fetus often develop larger, with expired fetal skull large and hard, difficult to deform after delivery through the birth canal, thereby increasing the dystocia, birth trauma and fetal death risk. Exregnant pregnancy, pregnant women prone to placental dysfunction, that is, mature placenta began to age, umbilical cord blood oxygen content and saturation at the end, and mature fetal oxygen