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怀孕b超检查孕囊多少

更新时间: 2020-11-04 00:00:00     

怀孕后B超能看到孕囊的时间因人而异,因为育龄期妇女月经周期不同,而孕囊着床到长出胎芽的时间与月经周期长短有关,为20-60天不等。检查孕囊有两种方式,为阴超和做经腹部B超,通常从末次月经第一天算起,至怀孕35-42天左右可以看到孕囊。而阴超比较早,通常怀孕35天后可以看到孕囊,而经腹部B超在接近42天时可以看到孕囊,如果到49天未能看到孕囊,应高度怀疑宫外孕。

关键词: 怀孕 检查 多少

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