Egg freezing

Egg freezing, or oocyte cryopreservation, is a process in which a woman’s eggs (oocytes) are extracted, frozen and stored as a method to preserve reproductive potential in women of reproductive age.

When the woman is ready to use the frozen eggs to achieve pregnancy, these cryopreserved eggs are placed in warming solution and assessed. Those eggs that survived the freezing process are fertilized with intracytoplasmic sperm injection (ICSI), where a single sperm is injected directly into the egg, and the fertilized eggs will grow in culture until the embryo(s) are ready to be transferred into the uterus to achieve pregnancy, typically 3-5 days after fertilization.

Frequently Asked Questions

A woman in her 20s and 30s is likely to have healthy eggs. Hence, this age is most suitable for egg freezing.

Long-term egg freezing has been successful in recent years and eggs may remain viable as long as 8-10 years.

As many as 10 eggs are extracted for freezing.

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