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<h1>How are the donor eggs frozen?</h1>
An embryologist evaluates the eggs once they have been retrieved from the <a href="/en-gb/cy-shop/private/find-donor/search-egg-donors/">egg donor</a>. Only mature eggs of top quality will be selected for cryopreservation &ndash; <a href="/en-gb/cy-shop/private/fertility-preservation/sperm-freezing-and-storage/">freezing and storing of the eggs</a>.
The eggs are vitrified which means that the <a href="/en-gb/cy-shop/private/donor-eggs/donor-eggs-for-fertility-treatment/">donor eggs</a> are frozen rapidly to prevent possible ice crystal formation that could damage the eggs. <a href="/en-gb/cy-shop/private/blog/vitrification-what-is-it/">Vitrification</a> results in high survival numbers when the eggs are later warmed, and overall <a href="/en-gb/cy-shop/private/donor-eggs/success-rate/">success rate with vitrified donor eggs</a> approaches that of fresh donated eggs. After being vitrified, the eggs are stored in liquid nitrogen, until they are used for fertility treatment.
Read more about the <a title="Read mroe about the proces here" href="/en-gb/cy-shop/private/donor-eggs/screening-of-egg-donors/">egg donor screening proces</a> here

Links

<a title="What are donor eggs?" href="/en-gb/cy-shop/private/faq/about-donor-eggs/what-are-donor-eggs/">What are donor eggs?</a>
<a title="Why use donor eggs?" href="/en-gb/cy-shop/private/faq/about-donor-eggs/why-use-donor-eggs/">Why use donor eggs?</a>
<a title="Why choose frozen donor eggs?" href="/en-gb/cy-shop/private/faq/about-donor-eggs/why-choose-frozen-donor-eggs/">Why choose frozen donor eggs?</a>
<a title="How are the donor eggs frozen?" href="/en-gb/cy-shop/private/faq/about-donor-eggs/how-are-the-donor-eggs-frozen/">How are the donor eggs frozen?</a>
<a title="What is the price of donor eggs?" href="/en-gb/cy-shop/private/faq/about-donor-eggs/what-is-the-price-of-donor-eggs/">What is the price of donor eggs?</a>
<a title="What does the law say about donor eggs?" href="/en-gb/cy-shop/private/faq/about-donor-eggs/what-does-the-law-say-about-donor-eggs/">What does the law say about donor eggs?</a>

About donor eggs

links

<a title="What should I consider when choosing an egg donor?" href="/en-gb/cy-shop/private/faq/the-egg-donors-at-cryos/what-should-i-consider-when-choosing-an-egg-donor/">What should I consider when choosing an egg donor?</a>
<a title="Who are the egg donors?" href="/en-gb/cy-shop/private/faq/the-egg-donors-at-cryos/who-are-the-egg-donors/">Who are the egg donors?</a>
<a title="Where are the egg donors from?" href="/en-gb/cy-shop/private/faq/the-egg-donors-at-cryos/where-are-the-donors-from/">Where are the egg donors from?</a>
<a title="What are the egg donors tested for?" href="/en-gb/cy-shop/private/faq/the-egg-donors-at-cryos/what-are-the-egg-donors-tested-for/">What are the egg donors tested for?</a>
<a title="How many times can an egg donor donate?" href="/en-gb/cy-shop/private/faq/the-egg-donors-at-cryos/how-many-times-can-an-egg-donor-donate/">How many times can an egg donor donate?</a>

The egg donors at Cryos

<a title="How do I order donor eggs from Cryos?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/how-do-i-order-donor-eggs-from-cryos/">How do I order donor eggs from Cryos?</a>
<a title="How many donor eggs should I order?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/how-many-donor-eggs-should-i-order/">How many donor eggs should I order?</a>
<a title="Do you offer a guarantee on donor eggs?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/do-you-offer-a-guarantee/">Do you offer a guarantee on donor eggs?</a>
<a title="Can I have the donor eggs delivered at home?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/can-i-have-the-donor-eggs-delivered-at-home/">Can I have the donor eggs delivered at home?</a>
<a title="How do I know if you deliver to my clinic?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/how-do-i-know-if-you-deliver-to-my-clinic/">How do I know if you deliver to my clinic?</a>
<a title="When should I place my order?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/when-should-i-place-my-order/">When should I place my order?</a>
<a title="Why make a reservation of donor eggs?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/why-make-a-reservation-of-donor-eggs/">Why make a reservation of donor eggs?</a>
<a title="How do I pay for the donor eggs?" href="/en-gb/cy-shop/private/faq/ordering-and-delivery/how-do-i-pay-for-the-donor-eggs/">How do I pay for the donor eggs?</a>

Ordering and delivery

<a title="What is a pregnancy quota?" href="/en-gb/cy-shop/private/faq/quota-reservation/what-is-a-pregnancy-quota/">What is a pregnancy quota?</a>
<a title="What is a Quota Reservation?" href="/en-gb/cy-shop/private/faq/quota-reservation/what-is-a-quota-reservation/">What is a Quota Reservation?</a>
<a title="How do I know if I need a Quota Reservation?" href="/en-gb/cy-shop/private/faq/quota-reservation/how-do-i-know-if-i-need-a-quota-reservation/">How do I know if I need a Quota Reservation?</a>
<a title="Why does the Quota Reservation come with a price?" href="/en-gb/cy-shop/private/faq/quota-reservation/why-does-the-quota-reservation-come-with-a-price/">Why does the Quota Reservation come with a price?</a>
<a title="Should I purchase a quota reservation for siblings?" href="/en-gb/cy-shop/private/faq/quota-reservation/should-i-purchase-a-quota-reservation-for-siblings/">Should I purchase a quota reservation for siblings?</a>
<a title="Will the Quota Reservation be refunded if I do not get pregnant?" href="/en-gb/cy-shop/private/faq/quota-reservation/will-the-quota-reservation-be-refunded-if-i-do-not-get-pregnant/">Will the Quota Reservation be refunded if I do not get pregnant?</a>

Quota reservation

<a title="When and how should I register my pregnancy?" href="/en-gb/cy-shop/private/faq/pregnancy/when-and-how-should-i-register-my-pregnancy/">When and how should I register my pregnancy?</a>
<a title="Why do I need to register my pregnancy to Cryos?" href="/en-gb/cy-shop/private/faq/pregnancy/why-do-i-need-to-register-my-pregnancy-to-cryos/">Why do I need to register my pregnancy to Cryos?</a>
<a title="What is the expected pregnancy rate when using donor eggs from Cryos?" href="/en-gb/cy-shop/private/faq/pregnancy/what-is-the-expected-pregnancy-rate-when-using-donor-eggs-from-cryos/">What is the expected pregnancy rate when using donor eggs from Cryos?</a>

Pregnancy

<a title="How many families can use the same egg donor?" href="/en-gb/cy-shop/private/faq/donor-conceived-children/how-many-families-can-use-the-same-donor/">How many families can use the same egg donor?</a>
<a title="Can my child get in contact with the egg donor in the future?" href="/en-gb/cy-shop/private/faq/donor-conceived-children/can-my-child-get-in-contact-with-the-egg-donor-in-the-future/">Can my child get in contact with the egg donor in the future?</a>

Donor-conceived children

<a title="How do I get in contact with you?" href="/en-gb/cy-shop/private/faq/about-cryos/how-do-i-get-in-contact-with-you/">How do I get in contact with you?</a>
<a title="Can I have my fertility treatment at Cryos?" href="/en-gb/cy-shop/private/faq/about-cryos/can-i-have-my-fertility-treatment-at-cryos/">Can I have my fertility treatment at Cryos?</a>
<a title="Can I have double donation treatment with egg donors from Cryos i.e. purchase both donor sperm and donor eggs for my treatment?" href="/en-gb/cy-shop/private/faq/about-cryos/can-i-have-double-donation-treatment-with-donors-from-cryos/">Can I have double donation treatment with egg donors from Cryos i.e. purchase both donor sperm and donor eggs for my treatment?</a>
<a title="Why should I purchase donor eggs from Cryos?" href="/en-gb/cy-shop/private/faq/about-cryos/why-should-i-purchase-donor-eggs-from-cryos/">Why should I purchase donor eggs from Cryos?</a>
<a title="Does Cryos have sperm donors too?" href="/en-gb/cy-shop/private/faq/about-cryos/does-cryos-have-sperm-donors-too/">Does Cryos have sperm donors too?</a>