Patient's question:
Because of a slight issue with my body, I underwent IVF in the United States and cannot transfer immediately. The embryo has already developed into a blastocyst, and it needs to be frozen. Will freezing the embryo cause harm to it?Doctor's answer:
Regarding this concern, it is unnecessary. Cryopreservation of embryos is a mature technology. Unlike frozen sperm and frozen eggs, the technology for frozen sperm is also relatively mature. However, freezing eggs alone is a bit different. Eggs are very sensitive to temperature, and there is still a certain chance of loss after thawing after freezing. Therefore, choosing blastocyst freezing is the most ideal way to preserve fertility.