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胎儿多少天可以查出来
更新时间: 2020-11-04 00:00:00  

胎儿在停经40天左右就可以查出来。胎儿是指妊娠8周以后的胎体。妊娠4~8周娩出的胎体为胚胎。胚胎期重要器官逐渐形成,在胎儿期各器官进一步发育成熟。胎儿在妊娠28周以前娩出的现象称为流产,孕28~37周前娩出的现象称为早产,孕37周至不满42足周娩出的现象称为足月产。

关键词: 胎儿 多少 可以 出来

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