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怀孕多少天可以用试纸检测出来
更新时间: 2020-11-05 00:00:00  

怀孕7-10天可以用试纸检测出来,它的原理是怀孕以后血液当中hcg升高,其中有一部分hcg会通过尿液排泄。通过用试纸检测尿液当中hcg是否呈阳性来判断怀孕。怀孕以后一般需要7~10天左右血液当中存在有稳定的hcg,这种情况下才可以通过试纸来检测。

关键词: 怀孕 多少 可以 试纸 检测 出来

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