Blastocyst Culture

The term ‘blastocyst refers to the human embryo 5 – 6 days after fertilisation. It is the stage of development that the embryo must reach before it can implant in the uterus. Standard practice in IVF involves the replacement of embryos into the uterus after 5 or 6 days when the embryos are at the blastocyst stage of development.Transferring embryos at the blastocyst stage also provides a better coordination between the embryo and the uterus by putting the embryo back in the right place (the uterus) at the right time (blastocyst stage). Overall, if you have a normal blastocyst for transfer on day 5, the chances of pregnancy are higher (in our hands) than if you have embryos transferred on day 3.