Egg Freezing vs. Embryo Freezing: What’s the Difference—and What is Banking?

At Wellnest Fertility, we often talk with patients who are considering fertility preservation but aren’t sure whether egg freezing, embryo freezing, or something called “banking” is the right fit for them. If you're feeling a little unsure—you're not alone. Here’s a breakdown of what each of these terms means and why someone might choose one path over another.

What Is Egg Freezing?

Egg freezing, also called oocyte cryopreservation, is a process where mature eggs are retrieved from the ovaries, frozen, and stored unfertilized for future use. This option gives individuals the flexibility to preserve their fertility without needing a partner or sperm donor at the time of freezing.

People often choose egg freezing if they want to delay parenthood for personal or medical reasons, such as focusing on career, not having found the right partner, or undergoing treatments like chemotherapy. It’s also a great option for those who want to take proactive steps to preserve their reproductive potential.

Egg freezing can be done in one cycle, but many people choose to complete multiple cycles to collect a higher number of eggs—this is also sometimes called egg banking. It’s especially helpful for those with lower ovarian reserve or who want to maximize their chances for future success.

What Is Embryo Freezing?

Embryo freezing follows a similar beginning: the eggs are retrieved through the same stimulation and retrieval process. However, instead of freezing them immediately, the eggs are fertilized in the lab using sperm (from a partner or donor), and the resulting embryos are cultured and then frozen.

Embryo freezing is often the preferred option for couples who are ready to use both egg and sperm at the time of treatment. It also allows for genetic testing of the embryos before freezing, which can help guide future decisions.

Just like with egg freezing, some patients choose to do multiple rounds to store a larger number of embryos—this is called embryo banking. It’s often used by those who want to build a bigger reserve of embryos for future family planning, especially if they want multiple children down the line.

Ready to start your journey?

Choosing between egg freezing, embryo freezing, or banking can feel overwhelming—but it doesn't have to be. At Wellnest, we're here to guide you through every step of the process with clarity, compassion, and expertise. If you’re considering fertility preservation, scheduling a consultation is the best way to learn which option is right for you.

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