Is blastocyst culture better than replacing embryos on Day3?
Culturing the embryos until Day 5 does not improve the quality of the embryos. It simply gives us more information that may help us select the best quality embryo when we have a number of embryos to choose from. If the embryos reach the blastocyst stage, there is an increased chance of pregnancy as we know these embryos have reached a further stage of development.
