Egg Freezing Success Rates

Fertility programs participating in the Frozen Egg Bank Network have collectively frozen and thawed nearly 30,000 eggs. All programs are thoroughly vetted before being granted our Seal Of Quality Assurance, meaning you can have absolute assurance that you are being given the best chance of a successful result.

Fertility programs in the Frozen Egg Bank Network are
the experienced experts you can trust.

Reported success rates for egg freezing have varied widely in the media. While it is true that in the past it was a procedure with an overall low chance of success, a recent stride forward in egg freezing technology, discussed below, has massively improved the rate of successful pregnancies. Here are three other factors that determine the likelihood of bringing home a baby conceived from frozen eggs:

Quality Of Fertility ClinicEgg Freezing Success Rates
As already mentioned, your chances of a successful pregnancy improve enormously when your eggs are handled in the lab by embryologists experienced in egg vitrification and warming. We encourage you to contact us before you seek treatment. We will be able to ensure the laboratory is compliant with quarterly quality assurance and meeting the required standards for egg vitrification and warming. Of course, just like in IVF, there’s no guarantee your frozen eggs will lead to a baby, but you’re maximizing your chances by putting them in good hands.

Age That You Freeze
As you’re probably aware, the quality and quantity of your eggs declines rapidly in your late 30s. That’s why doctors encourage women who know they won’t be ready to start their families until later in life to freeze their eggs before the age of 35 when their eggs are good quality. Most clinics will accept patients up to the age of 40 for elective egg freezing who have a normal ovarian reserve. A simple blood test can help assess your fertility health.

Number Of Eggs Frozen
Just like with IVF treatment with fresh eggs, it might take several tries to achieve a successful pregnancy. Doctors recommend that women age 37 and younger put away 20 eggs (it’s 30 eggs for older women) to give themselves the best chance. You might have to undergo more than one retrieval cycle to reach that number.

For example, when you decide you’re ready to have a baby, doctors may thaw 10 eggs. Perhaps six or seven are successfully fertilized. After growing for five days in a lab, you might end up with two high quality embryos, which each has a 50 percent chance of resulting in a pregnancy. On average, thawing 20 eggs gives women four good embryos. See our Costs & Financing section to learn more about our packages.


Until recently, egg freezing was done through a slow-freeze methodology and had varying degrees of success. Using the slow-freeze method, ice crystals would form within the egg and would destroy the cell’s structure and reduce chances of success.

More recently, a technique has emerged known as “vitrification,” in which eggs are frozen so quickly that ice crystals are never given the chance to form. Embryologists highly skilled in this technique can greatly minimize the formation of these crystals, thereby keeping the cell structure intact. As a result, our technique protocol ensures that eggs that have been vitrified (flash-frozen) are virtually the same as using freshly retrieved eggs, with clinical pregnancy rates almost 4 times higher than those achieved with slow-freezing.

In 2012, the emergence of vitrification led the doctors’ professional association American Society for Reproductive Medicine to welcome egg freezing into mainstream medicine by declaring it was no longer “experimental.” Needless to say, fertility programs in the Frozen Egg Bank Network all use this new assisted reproductive technology, since it guarantees the greatest likelihood of a successful outcome.