Cryopreservation (freezing) of embryos

In the event that more embryos are obtained within an artificial insemination cycle, we transfer only one or not more than two most optimally developing embryos to the uterus. We recommend freezing the excess embryos and keeping them for the couple for the future. The survival rate of the embryos after thawing is high, so the couple has a chance to undergo cryoembryotransfer (CET) in case of non-pregnancy after the transfer of the fresh embryo. This is only preceded by the preparation of the uterine mucosa for the reception of the transferred embryo. The woman does not have to go through the whole stimulation process followed by egg retrieval again. In the case of good quality of embryos after thawing, the chances of becoming pregnant after cryoembryotransfer are similar to those in the transfer of fresh embryos.