Frozen Embryo Replacement Cycle (FERC)
If the cycle has produced more than two (or three) good quality embryos, those that aren’t transferred may be frozen for future use. These embryos will be frozen at an extremely low temperature (-180Â°C), which ensures that they do not deteriorate over the number of years they are stored.
In a Frozen Embryo Transfer Cycle, the woman takes medications to prepare her womb to receive these embryos. The advantage of frozen embryo implantation treatment is that there is no need to use hormone injections to stimulate the ovaries.
An ultrasound scan is performed to assess the lining of the uterus to determine whether it is ready to receive the embryo. Once the lining is ready, the embryos are thawed and transferred