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受精卵幾天可以著床？形成受精卵的必要條件是什么？

出處：媽媽育兒網 日期：2020-11-04 11:36:43 編輯：璇子
說道受精卵相信大家也都是不陌生的，想精子和卵細胞相遇也就是會形成一個受精卵，那么，我們一起來看看，受精卵幾天可以著床？

受精卵幾天可以著床？

從正常的情況下來看，受精卵著床則是需要大概6~7天的時間的。
并且在受精卵形成的初期也是屬于非常的小的，在這個時間段使用B超是看不出來的。
一般來說，受精卵也是需要著床后的20~30天，用B超才可以看到一個比較小的孕囊的。
不過用早孕試紙能稍微早一點測出女人懷孕，大約是在排卵期后的第10天左右，用測孕試紙能測出弱陽性。

形成受精卵的必要條件是什么？

1、卵巢排出正常的卵子。
2、精液正常并含有正常的精子。
3、卵子和精子能夠在輸卵管內相遇并結合成為受精卵。
4、受精卵順利地被輸送進入子宮腔。
5、子宮內膜已充分準備適合于受精卵的床。 這些環(huán)節(jié)中有任何一個不正常，便能阻礙受孕。

受精卵著床就會形成一個胚胎嗎？

是的。
受精卵著床是胎生胚胎發(fā)育早期階段的一個重要環(huán)節(jié)。在受精卵著床之前，胚泡在宮腔內游離，它是新個體，有遭排斥脫落危險。經過附著、穿入內膜之后，母子雙方實現緊密結合，胚胎獲得母體的幫助，更有利于胚胎的生長發(fā)育。

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