天气预报 > 其他 > 孕妇b超检查胚芽多少天准确
孕妇b超检查胚芽多少天准确
更新时间: 2020-11-04 00:00:00  

孕妇b超检查胚芽45天-50天准确,以末次月经的第一天算起才可以在宫腔看到。相对而言,受精卵发育到一定程度会在孕囊里分裂成胚芽,胚芽继续发育以后就相当于宝宝的小手小脚,胚芽是胚胎未形成时的称谓。

关键词: 孕妇 检查 多少 准确

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