Embryo freezing is the process where embryos created in the laboratory are frozen(-196°C) using the latest Vitrification technique (also known as fast freezing) and stored safely for future use. When the decision is made to use the embryos, they are taken out of storage, warmed, and ready for transfer.
Embryo freezing is a beneficial option for many individuals and couples. You may consider embryo cryopreservation if:
At IHR Guwahati, we have been routinely cryopreserving embryos since 2012. We follow “freeze-all” protocol, where all high-quality embryos are frozen and transferred in a later cycle.
Yes! In many cases, frozen embryo transfers result in higher pregnancy rates compared to fresh transfers. This is because the body has time to return to its natural hormonal state, which creates a more receptive environment for implantation.
(see Our Success Rate page)
Vitrification is a modern cryopreservation technique that freezes embryos so rapidly that it prevents ice crystal formation. Instead of forming sharp ice that can damage cells, the embryo is transformed into a glass-like state—preserving its structure and increasing survival after thawing.
This method is:
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