Assisted Reproductive Technology(ART)

Blastocyst transfer

We already know that with natural conception, embryos arrive in the uterus at day 5-6 after fertilization. With present-day IVF, however, embryos are routinely transferred back to the uterus on day 3 after fertilization. Recent breakthroughs have been made in the science of nurturing embryos in the laboratory. These discoveries have allowed the embryos from select patients to benefit from an additional 2 to 3 days of growth prior to embryo transfer. By growing embryos to the blastocyst stage, we are able to transfer fewer embryos without lowering the chance that a patient will become pregnant. This breakthrough will help maintain the high pregnancy rates that patients have come to expect while decreasing the risk of conceiving a high order multiple pregnancy.