{"id":39681,"date":"2025-06-23T12:55:50","date_gmt":"2025-06-23T10:55:50","guid":{"rendered":"https:\/\/urecentrogutenberg.es\/egg-freezing-frequently-asked-questions-about-this-assisted-reproduction-treatment\/"},"modified":"2025-06-23T12:55:50","modified_gmt":"2025-06-23T10:55:50","slug":"egg-freezing-frequently-asked-questions","status":"publish","type":"post","link":"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/","title":{"rendered":"Egg freezing: frequently asked questions about this assisted reproduction treatment"},"content":{"rendered":"<p>Vitrification is a rapid freezing technique for eggs and embryos. It involves subjecting them to a sudden drop in temperature, to negative 196 degrees Celsius, in a liquid nitrogen tank. With this freezing technique\u00a0<strong>no damage is caused to the egg or the cells\u00a0<\/strong>of the embryo, and it\u2019s a process we carry out on a daily basis at our fertility clinic in Spain in order to preserve eggs and embryos.<\/p>\n<p>Keeping in mind that a female\u2019s fertility declines as she ages, especially after 35-37 years old, as well as the fact that women are waiting increasingly longer to have children, egg freezing is a good alternative. Thanks to this technique we can\u00a0<strong>safely preserve eggs\u00a0<\/strong>so that women can postpone motherhood until the time is right.<\/p>\n<p>On the other hand, fertility preservation treatment is also effective and indicated in specific situations. A good example is a woman who has been\u00a0<a href=\"https:\/\/urecentrogutenberg.es\/en\/fertility-clinic-spain-testimonials-rocio\/\" target=\"_blank\" rel=\"noopener noreferrer\">diagnosed with cancer<\/a>\u00a0and who will be undergoing radiotherapy or chemotherapy treatment. As we know these treatments will have a detrimental impact on the quantity and quality of eggs, vitrification can help patients<strong>\u00a0preserve their fertility before receiving cancer treatment<\/strong>.<\/p>\n<p>URE Centro Gutenberg was\u00a0<strong>the first assisted reproduction clinic\u00a0<\/strong>authorised to use this technique in Malaga in 2007. Since then, many patients have trusted in us and have made the decision to preserve their fertility for after cancer treatment.<\/p>\n<p>Some time ago we talked to you about egg freezing and what it involves in an\u00a0<a href=\"https:\/\/urecentrogutenberg.es\/en\/preservation-female-fertility-questions\/\" target=\"_blank\" rel=\"noopener noreferrer\">article about preservation of female fertility<\/a>. Today we are going to\u00a0<strong>share some of the questions\u00a0<\/strong>we receive from future moms when they are about to embark on this treatment process with us.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Tabla de contenidos<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #3f3f3f;color:#3f3f3f\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #3f3f3f;color:#3f3f3f\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#What_is_the_ideal_age_to_preserve_your_fertility\" >What is the ideal age to preserve your fertility?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#What_type_of_medical_testing_is_necessary_before_a_cycle_of_egg_freezing\" >What type of medical testing is necessary before a cycle of egg freezing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#How_long_does_egg_freezing_treatment_take\" >How long does egg freezing treatment take?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#_Is_egg_collection_painful\" >\u00a0Is egg collection painful?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#Will_I_need_to_rest_after_egg_collection\" >Will I need to rest after egg collection?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#Will_egg_freezing_treatment_impact_my_future_fertility\" >Will egg freezing treatment impact my future fertility?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#Do_all_frozen_eggs_survive_the_thawing_process\" >Do all frozen eggs survive the thawing process?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#_Are_pregnancy_rates_the_same_as_with_fresh_eggs\" >\u00a0Are pregnancy rates the same as with fresh eggs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#How_long_can_the_eggs_stay_frozen\" >How long can the eggs stay frozen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#Until_what_age_can_I_use_my_frozen_eggs\" >Until what age can I use my frozen eggs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/urecentrogutenberg.es\/en\/egg-freezing-frequently-asked-questions\/#_Will_I_need_to_have_a_partner_in_order_to_use_my_frozen_eggs\" >\u00a0Will I need to have a partner in order to use my frozen eggs?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_the_ideal_age_to_preserve_your_fertility\"><\/span>What is the ideal age to preserve your fertility?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Like we\u2019ve said on several occasions, a female\u2019s fertility begins to\u00a0<strong>decline drastically around 35-37<\/strong>\u00a0years of age. This is the age when IVF success rates also start to fall.<\/p>\n<p>By the age of 40, a woman\u2019s chances of getting pregnant with her own eggs are no higher than 20% with IVF treatment. Once a woman turns 44, the likelihood of success in a cycle of IVF with own eggs\u00a0<strong>is almost zero<\/strong>.<\/p>\n<p>For these reasons, the ideal age we recommend for egg freezing and preservation of fertility is\u00a0<strong>around 35 years old<\/strong>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_type_of_medical_testing_is_necessary_before_a_cycle_of_egg_freezing\"><\/span>What type of medical testing is necessary before a cycle of egg freezing?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In general you\u2019ll require a\u00a0<strong>gynaecological check-up\u00a0<\/strong>and\/or an anti-m\u00fcllerian hormone analysis. This way we will be able to assess your ovarian reserve.<\/p>\n<p>You will also need to undergo\u00a0<strong>basic analyses as well as serology tests<\/strong>\u00a0for HIV, Hepatitis B and C and Syphilis.<strong>\u00a0<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_long_does_egg_freezing_treatment_take\"><\/span>How long does egg freezing treatment take?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To get started, your ovaries will be stimulated by taking medication that is administered subcutaneously. This treatment normally begins with the patient\u2019s period and\u00a0<strong>lasts approximately 10\u00a0days<\/strong>.<\/p>\n<p>Three to four ultrasound scans and some blood tests will also be necessary\u00a0<strong>to assess how well the ovaries are responding<\/strong>\u00a0to treatment and then arrange the day for egg retrieval.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"_Is_egg_collection_painful\"><\/span><strong>\u00a0<\/strong>Is egg collection painful?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Egg retrieval is a surgical procedure that requires sedation and lasts around 15 to 20 minutes. This ultrasound-guided process is performed through the vagina\u00a0<strong>and the patient will not feel any pain<\/strong>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Will_I_need_to_rest_after_egg_collection\"><\/span>Will I need to rest after egg collection?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As anaesthesia will be utilised we recommend\u00a0<strong>rest and relaxation for about 24 hours following egg collection<\/strong>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Will_egg_freezing_treatment_impact_my_future_fertility\"><\/span>Will egg freezing treatment impact my future fertility?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>No. Ovarian stimulation,\u00a0whether it be for fertility treatment such as\u00a0<a href=\"https:\/\/urecentrogutenberg.es\/en\/in-vitro-fertilisation\/\" target=\"_blank\" rel=\"noopener noreferrer\">in vitro fertilisation (IVF)<\/a>, or for\u00a0<a href=\"https:\/\/urecentrogutenberg.es\/en\/egg-donation\/\" target=\"_blank\" rel=\"noopener noreferrer\">egg donation<\/a>\u00a0or egg freezing in order to preserve your fertility,\u00a0<strong>will not impact your future fertility<\/strong>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Do_all_frozen_eggs_survive_the_thawing_process\"><\/span>Do all frozen eggs survive the thawing process?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The survival rate of eggs after thawing is\u00a0<strong>around 75 to 100%<\/strong>.<\/p>\n<p>Normally this rate is as high as\u00a0<strong>90% for women under the age of 35<\/strong>. It drops to 80.8% for women between the ages of 35 and 39 and falls to 75-80% for women over the age of 40.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"_Are_pregnancy_rates_the_same_as_with_fresh_eggs\"><\/span><strong>\u00a0<\/strong>Are pregnancy rates the same as with fresh eggs?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Our experience, as well as scientific literature published over recent years, shows\u00a0<strong>similar pregnancy rates\u00a0<\/strong>in cycles of in vitro fertilisation with frozen eggs and fresh eggs.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_long_can_the_eggs_stay_frozen\"><\/span>How long can the eggs stay frozen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Eggs can\u00a0<\/strong><strong>remain frozen<\/strong>\u00a0<strong>indefinitely<\/strong>, as there has been no evidence indicating that longer storage periods result in lower survival rates and\/or lower quality after thawing.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Until_what_age_can_I_use_my_frozen_eggs\"><\/span>Until what age can I use my frozen eggs?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>While there is no age limit for undergoing assisted reproduction treatment in Spain at present,\u00a0<strong>there is a general consensus<\/strong>\u00a0among the different clinics specialising in assisted reproduction.<\/p>\n<p><strong>Ethically speaking, the age limit is 50\u00a0<\/strong>years old for the female, mainly due to the risks associated with pregnancy in women of advanced maternal age.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"_Will_I_need_to_have_a_partner_in_order_to_use_my_frozen_eggs\"><\/span><strong>\u00a0<\/strong>Will I need to have a partner in order to use my frozen eggs?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>No<\/strong>. The frozen eggs can be used in a cycle of IVF with your partner\u2019s sperm or with sperm from an anonymous donor sperm bank.<\/p>\n<p>&nbsp;<\/p>\n<p>Have we answered all your questions? Are you still unclear on anything relating to egg freezing? If you are,\u00a0<a href=\"https:\/\/urecentrogutenberg.es\/en\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>contact us!<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vitrification is a rapid freezing technique for eggs and embryos. It involves subjecting them to a sudden drop in temperature, to negative 196 degrees Celsius, in a liquid nitrogen tank. With this freezing technique\u00a0no damage is caused to the egg or the cells\u00a0of the embryo, and it\u2019s a process we carry out on a daily [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[499,500],"tags":[504,503,703,704,530],"class_list":["post-39681","post","type-post","status-publish","format-standard","hentry","category-assisted-reproduction-treatments-and-techniques","category-laboratory-stuff","tag-assisted-reproduction-techniques","tag-in-vitro-fertilisation","tag-oocyte-freezing","tag-oocyte-freezing-en","tag-vitrification"],"_links":{"self":[{"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/posts\/39681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/comments?post=39681"}],"version-history":[{"count":2,"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/posts\/39681\/revisions"}],"predecessor-version":[{"id":39683,"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/posts\/39681\/revisions\/39683"}],"wp:attachment":[{"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/media?parent=39681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/categories?post=39681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/urecentrogutenberg.es\/en\/wp-json\/wp\/v2\/tags?post=39681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}