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怀孕多少周能测出是宫内妊娠
更新时间: 2020-11-04 00:00:00  

如果平时月经周期比较规律,一般怀孕5-6周左右做彩超检查就可以确定是否是正常宫内孕。

月经是生理上的循环周期,发生在一些具有生育能力的女性人类和黑猩猩与别的动物之间。刺毛鼠,母牛、母马、母骆驼、母猪、母羊等也会来月经,某些的哺乳类动物则是经历动情周期。育龄妇女和灵长类雌性动物,每隔一个月左右,子宫内膜发生一次自主增厚,血管增生、腺体生长分泌以及子宫内膜崩溃脱落并伴随出血的周期性变化。这种周期性阴道排血或子宫出血现象,称月经。

关键词: 怀孕 多少 测出 宫内 妊娠

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