What is blastocyst (embryo) culturing?
Blastocyst culturing is a technique to grow embryos beyond the third day of culture. Typically with IVF, embryos are transferred into the uterus about three days after the egg retrieval, which is several days earlier than would occur in nature. On the third day, embryos generally are between six to eight cells. We now have the ability to keep the embryos two additional days in a culturing material before implantation in the uterus.