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怀孕20周宫颈长度多少正常

更新时间: 2020-11-04 00:00:00     

怀孕20周宫颈长度在30毫米左右是正常的,建议可以去医院做个B超。B超检测宫颈长度,主要是预防早产。一般在22-24周内做这项检查,如果小于30mm,提示早产的可能性较大,最好卧床休息。

关键词: 怀孕 宫颈 长度 多少 正常

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