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    Genetic Matching – find a genetically compatible donor

    In every pregnancy – no matter how the baby is conceived – there is a small risk of the child inheriting a genetic disease. All sperm donors at Cryos have been thoroughly screened to minimize this risk, but the mother’s genes - and the genetic compatibility - of course play a part too. With our Genetic Matching services, you can find out whether you and your donor’s genes are a good match. 

    As (future) parents, we will do anything to protect our children and make sure they are healthy and safe. The urge to protect starts early on, and when going through fertility treatment, the concerns might begin even before a child is conceived.  

    At Cryos, we want to give you peace of mind and the best possible chances for becoming a parent to a healthy child. By thoroughly testing and screening all donor candidates, we put a lot of resources into minimizing the risk related to the use of donor sperm. But the risk of a child inheriting a genetic disease is not isolated to the donor, and by also comparing the genes of you and your favourite donor, you will get even more assurance regarding the genes that are passed on to your child. That is why we offer Genetic Matching. 

    Mother and child holding hands

    What is Genetic Matching? 

    Genetic Matching is an optional add-on when choosing a donor at Cryos. By using our Genetic Matching services, you can find out whether the genes of you and your favourite donor are a good match before you begin your fertility treatment. If the test shows that you are not a good match and that you face an increased risk of passing on diseases to children if you proceed with the chosen donor, you can, free of charge, choose a new donor to be matched up against.  

    Below you can learn more about why and how to order Genetic Matching. 

    Why do genetic testing before a pregnancy? 

    Even though you feel healthy and well, the fact is that all human beings are carriers of an unknown number of recessive gene variants (mutations) that might be passed on to our children. Most people do not know what they are carriers of and will never be affected by it.  

    A child conceived with donor sperm will inherit half of its genes from the sperm donor and half of its genes from the genetic mother. If both parts carry a variation in the same gene, there is an increased risk of the child developing a disease. This risk is the same for all children, donor-conceived or not.  

    At Cryos, we perform an extensive screening of all donor candidates in which we assess his general condition as well as the medical and genetic history of both him and his family members in three generations. We also perform a genetic carrier test, looking for the most common genetic variants causing:  

    • Cystic fibrosis  
    • Hemoglobinopathies (including Alfa thalassemia, Beta thalassemia, and Sickle cell)  
    • Spinal muscular atrophy 
    • Tay Sachs 
    • Non-syndromic deafness (GJB2) 

    as these are among the most frequent hereditary diseases.  

    However, the donor screening does not take the recipient’s genes into account. In other words, despite our thorough screening, there is still a small risk of a child inheriting a disease, and this risk will be higher if both the sperm donor and the biological mother carry a variation in the same gene.  

    If you want to know the risk and be able to act on it before getting pregnant, Genetic Matching is a good opportunity for you. With this test, we will match your genes up against the donor’s and let you know whether you are genetically compatible.  

    In the video below, you can learn more about Genetic Matching and what it means to be a carrier of a recessive disease. 

    Different Genetic Matching services – incl. match guarantee 

    At Cryos, we offer different Genetic Matching services depending on your situation and needs. If your initial choice of donor turns out to be a no-match, you can choose a new donor who we will match up against your genes. We will continue this process until you have a match with a donor.   

    To avoid that your favourite donor is sold out while you wait for the Genetic Matching result, we highly recommend that you place an order of at least 3 sperm straws at the same time as ordering Genetic Matching. Just make sure to choose the latest possible shipping date, so your order will not be shipped before you have the test result. You will get the result within 6 weeks, and if it is a no-match, you can terminate your order and get a refund. 

    Single Gene Matching – Get to know if the donor carries a variant in the same gene as you  

    The Single Gene Matching solution is for you who already know that you are a carrier of a recessive genetic disease and want to be sure that the donor you choose is not a carrier of a mutation in the same gene. In most cases, you will know about the mutation from a genetic screening performed by your doctor or fertility clinic. 

    To perform this type of matching, we need you to provide documentation of your own carrier status and let us know which gene(s) to look at. With Single Gene Matching, we offer to test up to 3 genes.  

    Panel Matching – Match your genes up against the donor’s  

    The Panel Matching solution is for you who would like to get a broad and general matching for genetic diseases with recessive inheritance. With Genetic Panel Matching, we will match more than 300 of your recessive genes up against the genes of the donor you have chosen.  

    To do this, all we need from you is a saliva sample that you make at home. We will send you a test kit by mail.

    Saliva kit for genetic testing before use of donor sperm

    What are the costs of Genetic Matching? 

    Genetic Matching is an optional add-on when ordering donor sperm. The price of this service depends on which type of Genetic Matching you choose. You can see our donor sperm prices here. Besides the added costs, all that is required from you is either a saliva sample or documentation of your known carrier status, depending on which service you choose. 

    Is Genetic Matching relevant for me? 

    There can be different reasons for using our Genetic Matching services, but the main purpose is for you to get an added sense of security and make you feel more calm and secure about your choice of donor. By using our Genetic Matching services, you will know if using a particular donor increases the risk of having a child with a genetic disease and have the chance to choose another donor instead.  

    Please note, that it takes about 6 weeks for the test result to come in. If your fertility treatment is already planned and you need the donor sperm sooner than that, we recommend ordering straws without Genetic Matching. 

    How to order Genetic Matching of a Cryos donor

    1. Search for a donor available for Genetic Matching (you can add Genetic Matching as a filter)
    2. Once you have chosen a donor, go to his donor profile online and add the number of sperm straws you want to order in your basket (we recommend ordering at least 3 straws)
    3. Then choose which of our Genetic Matching services you want (Single Gene or Panel Matching) and add to basket
    4. Continue to checkout and fill out the required information about the genetic parent (if Single Gene Matching: Upload documentation of your known carrier status)
    5. Make sure not to request delivery until the match result comes in (this can take up to 6 weeks)
    6. Add payment details and finalize your order
    7. Only for Panel Matching: Once we receive your payment, we will send you a test kit and instructions by mail so you can make a saliva sample. When you have made the sample, please send it to our cooperating partners, using the accompanying packaging and shipping label, or to Cryos who will then forward it for you.

    Within approximately 6 weeks, our Customer Care team will contact you with the result to let you know whether the donor is a match or not. You will also receive documentation of the test result via email. 

    What does the Genetic Matching result mean?

    No matter which of our Genetic Matching services you choose, the result will either be ‘a match’ or ‘a no-match’. 

    If the donor is a no-match
    If your chosen donor turns out to be a ‘no-match,’ you can, free of charge, choose a new donor to be matched up against.

    If the donor is a match
    If you receive a match, it means that you and the donor do not carry any of the same variants within the tested genes, and you can go ahead and plan your treatment with his donor sperm. If you reserved straws while ordering Genetic Matching, you can log in to your Cryos account and request delivery to your clinic.

    Can genetic testing prevent diseases in children?

    Even though we conduct a matching between you and your chosen donor and look for recessive diseases, we cannot eliminate the risk of the child developing a genetic disease. There will always be a small residual risk, as not all genes will be examined, and new or unknown mutations cannot always be identified using matching either.

    Ready to find a sperm donor with Genetic Matching?

    In our free sperm donor search, you can easily see which donors are available for Genetic Matching. Start by creating an account and use the filters to find your match. If you have questions regarding Genetic Matching, you might find the answer below. Otherwise, we are here to help you – just contact our Customer Care Team or book a call.