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怀孕周期一般为多少周
更新时间: 2020-11-05 00:00:00  

怀孕周期一般为40周。其整个孕期共为280天,10个妊娠月(每个妊娠月为28天)。

孕期就是怀孕周数,医学上的孕期是指从末次月经的第一天(并不是从同房的那天算起)开始,到分娩结束,通常为四十周。孕期代谢旺盛,代谢产物增加,且胎儿的代谢产物亦要经母体肾脏排出,使肾脏的负担加重,肾功能有所改变。所以,孕妇尿液中常有蛋白或糖出现。

关键词: 怀孕 周期 一般 多少

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