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要怀孕多少天b超能测出来
更新时间: 2020-11-04 00:00:00  

如果是经腹部超声检查,一般38天以上就能看见孕囊,如果是经阴道超声检查最早35天就可以看见孕囊,50天左右可以看见胎芽以及原始心管搏动,孕12周时可以看见胎盘,及颅骨光环,孕16周至26周羊水与胎儿比例较好,可以很好的观察胎儿肢体发育情况,最早16周后可以看见胎儿性别,整个孕期至少要做两次四维彩超检查。

关键词: 怀孕 多少 出来

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