A blastocyst is a 5/6 day-old embryo with a complex cellular structure formed by approximately 200 cells.The blastocyst stage is the stadium of development before the implantation of the embryo in the mother’s uterus.


Transferring a blastocyst has the following advantages:

Advantages of transferring a blastocyst

    • Better embryo selection.
    • Improved implantation capacity, they have passed development blockages that occur regularly in early stages.
    • Reduces the risk of multiple pregnancy, it is recommended to transfer 1, maximum 2.
    • Allows for a more physiological synchronization between the embryonic stage and Endometrial receptivity, the phase before the moment of implantation.

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