Description

Following embryo transfer, any surplus embryos can be frozen. We would recommend freezing if two or more embryos of good quality are available. The advantage of freezing embryos is that they can be replaced in future cycles without having to undergo the IVF procedure again. The results following the transfer of frozen-thawed embryos depend on the number and quality of embryos available as well as the age of the woman. Nevertheless, fresh embryo replacement has a higher success rate. Frozen embryo transfer has been practiced since 1983, and there appears to be no increased incidence of fetal abnormalities in babies born following this procedure.