天气预报 > 其他 > 13周股骨长标准是多少
13周股骨长标准是多少
更新时间: 2020-11-05 00:00:00  

孕13周的胎儿双顶径正常情况下大多数是30左右,股骨长应该是15-20之间。一般情况下孕13周的时候,胎宝宝还没有具体的股骨长标准,胚胎还没有发育地很完全,只有头和臀的长度可以确定。

关键词: 股骨 标准 多少

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