Embryo Freezing (Embryo Cryopreservation)

Preserving embryos for future use

Embryo freezing, or cryopreservation, is a fertility preservation option used to store embryos created during an IVF or ICSI cycle for future use. High-quality embryos that are not transferred in the same cycle may be frozen and stored, allowing couples to preserve the possibility of pregnancy at a later time. Embryo freezing is also used in cases where a frozen embryo transfer (FET) is medically recommended in a subsequent cycle.

Who may benefit from embryo freezing?

Embryo freezing may be considered for:

How embryos are frozen and stored

Embryos are assessed in the embryology laboratory and suitable embryos are cryopreserved using specialized freezing methods. Frozen embryos are stored under controlled conditions for later use, according to clinical guidelines and applicable regulations.

What does a frozen embryo transfer (FET) cycle involve?

The uterine lining is monitored (typically by ultrasound) to determine the optimal timing for transfer. Once the lining is ready, the thawed embryo is transferred into the uterus.