天气预报 > 其他 > 50天左右孕囊多少正常值是多少
50天左右孕囊多少正常值是多少
更新时间: 2020-11-04 00:00:00  

50天孕囊的大小个体是有差异的。一般在3.5厘米左右。有的人大一些,有的小一些。只要符合月经时间,正常的发育,也不要太担心。

孕囊是原始的胎盘组织,被羊膜、血管网包裹的小胚胎。孕囊是怀孕最初的形态,那时候胎儿还没有形成,胎芽出现时已经有胎心跳动了。

关键词: 左右 多少 正常值

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