Embryo Freezing (Embryo Cryopreservation)
Advanced cryopreservation technique used in IVF cycles to preserve embryos for future transfer.
What is Embryo Freezing?
Embryo freezing, also known as embryo cryopreservation, is a laboratory process where viable embryos created during an IVF treatment cycle are preserved at ultra-low temperatures for future use.
It allows couples to store embryos safely and schedule transfer at a later, more suitable time.
When is Embryo Freezing Recommended?
- Surplus embryos after IVF
- Delayed embryo transfer due to uterine conditions
- Prior to medical treatments affecting fertility
- After genetic screening procedures
Frozen embryos can later be transferred through a Frozen Embryo Transfer (FET) cycle.
How the Procedure Works
After fertilization and embryo development, selected embryos are cryopreserved using vitrification technology. This rapid freezing method minimizes ice crystal formation and preserves embryo quality.
In some cases, embryos may undergo Preimplantation Genetic Testing (PGT) before freezing.
Benefits of Embryo Freezing
- Improves cumulative pregnancy rates
- Allows flexibility in timing pregnancy
- Reduces need for repeated ovarian stimulation
- Supports fertility preservation planning
Treatment planning is guided by specialists including Dr. Nikhil Gosavi.
Frequently Asked Questions
How long can embryos remain frozen?
Embryos can remain safely frozen for several years under controlled laboratory conditions.
Does freezing affect embryo quality?
Modern vitrification techniques maintain high embryo survival rates after thawing.
Is frozen embryo transfer successful?
Yes. FET success rates are comparable to fresh embryo transfer in many cases.
Can embryos be tested before freezing?
Yes. Genetic screening can be performed prior to cryopreservation.
Is embryo freezing the same as egg freezing?
No. Egg freezing preserves unfertilized eggs, while embryo freezing preserves fertilized embryos.
