What is your policy on working with abnormally fertilized eggs?

Our field increasingly recognizes that a proportion of embryos once thought to have no potential (based on their fertilization appearance) can actually lead to a normal liveborn baby. In line with our “nothing left behind” policy, all fertilizations with initial abnormal appearance are kept in culture and watched for development along with all the other embryos. Many times abnormal fertilizations do not result in a fully developed embryo. However, if one does make it to full development, our embryology lab will cryopreserve (freeze) and store it along with your other embryos.