Choosing a sperm bank is one of the first concrete steps towards a donor-conceived pregnancy — and one of the most bewildering. There are many banks, donor profiles look similar, websites all feel professional, and it's genuinely unclear how to begin comparing them. This article is an attempt to lay out the criteria that matter most.
One important point upfront: a sperm bank isn't just a catalogue of donors. It's a licensed medical institution with screening protocols, storage systems and legal accountability. How seriously it takes each of those elements directly affects your safety and your chances of success.
The first and most basic question is: who oversees this bank? In Europe, sperm banks are regulated by the EU Tissues and Cells Directive (EUTCD) and the national health authorities of each country. A bank operating in Denmark is licensed by the Danish Medicines Agency. In Spain, by the Ministry of Health. In Germany, by the Bundesärztekammer. This isn't bureaucratic detail — a licence means the bank undergoes regular external inspection.
The largest European banks — Cryos International, European Sperm Bank, Sperm Bank Denmark — ship to dozens of countries and operate under standards verified by independent regulators. When a bank has a long track record, operates across multiple jurisdictions and openly publishes its protocols, that carries real weight.
If a bank is based outside the EU or the US, the question of which regulator oversees it becomes critical. Banks without transparent licensing histories or external oversight are a red flag, regardless of how polished their website looks.
This is arguably the most important section. Donor screening is the system of checks designed to ensure that the material is medically and genetically safe. The minimum standard includes: testing for infectious diseases (HIV, hepatitis B and C, syphilis, chlamydia, gonorrhoea, CMV), basic genetic screening (typically a karyotype), and quarantine of the sample with repeat testing of the donor six months after donation.
Good banks go considerably further: expanded carrier screening for hundreds of inherited conditions (cystic fibrosis, spinal muscular atrophy, phenylketonuria and many others), psychological assessment of the donor, detailed multi-generational family health history. Before choosing a bank, it's worth asking directly: which specific genetic tests do you run? The answer should be a concrete list, not just 'expanded screening'.
An important caveat: screening does not eliminate all risk. Not every hereditary condition can be detected in advance. A good bank is honest about this — it doesn't claim its donors are 'guaranteed healthy', but explains what is tested and what residual risk remains. The absence of such honesty is a reason for caution.
This is one of the most sensitive questions — and simultaneously one of the most legally inconsistent across countries. In some countries, donor anonymity is legally protected: the child will never be able to learn who their donor is. In others, donor-conceived people have the right to access identifying information on reaching adulthood. Many countries are somewhere in between.
Banks accordingly offer two types of donors: anonymous and open (or 'ID-release'). An open donor has consented to the release of identifying details to the child at a specified age — usually 18. This doesn't mean obligatory contact; it simply means the option exists.
Two decades of psychological research increasingly indicates that the ability to know one's origins matters for the psychological development of donor-conceived people. This is why more and more recipients consciously choose open donors — even when their country still permits anonymity. It's a decision worth making deliberately, rather than defaulting to whichever donor has an appealing profile.
Beyond the anonymity question, ask: does the bank retain donor data long-term? What happens to that information if the bank closes or is acquired? The answers reveal how seriously the institution is thinking about your child's future.
Most European countries have legal caps on the number of families that can have children from a single donor. In the UK, the limit is 10 families; in Denmark, 12; Spain has no hard statutory cap but banks apply internal guidelines. The rationale is straightforward: reducing the probability that donor-siblings grow up in the same region and encounter each other without knowing they're related.
Ask the bank: how do you track family numbers per donor — by country, or globally? Some large banks ship worldwide, and a local country limit doesn't mean a donor isn't being used heavily elsewhere. This matters ethically and practically.
The quality of frozen sperm directly affects treatment outcomes. Frozen material always has lower motility than fresh — that's a physiological fact, not a defect. But the gap between banks can be significant: some work with material that retains high motility post-thaw, others don't.
Ask the bank: what are your guaranteed post-thaw motility figures? Most banks guarantee a minimum of five million motile sperm after thawing — the basic standard for IUI. IVF requirements are lower. Find out exactly what a given bank commits to and what happens if a sample doesn't meet those parameters.
Logistics matter too. How is the material transported? Under what conditions? How long does delivery take? If you're working with a clinic in another city or country, these are practical questions with real consequences. A reliable bank provides detailed information about the cold chain and takes responsibility for sample integrity until it's received at the clinic.
The donor profile is where it's easiest to get lost. Banks offer extensive questionnaires: education, profession, hobbies, blood type, physical characteristics, sometimes childhood photographs and audio recordings. This creates an impression of choosing a partner — but what you're actually choosing is medical material.
What genuinely matters in a profile from a medical standpoint: the results of genetic screening (not just 'passed', but the actual data), family history for infectious and hereditary conditions, blood type and Rh factor (particularly if you're Rh-negative), and CMV status, which affects the protocol in some clinics.
Appearance, height, eye colour — these are things many people care about, and that's understandable. But genetics are complex, and a child won't necessarily resemble a donor the way an online profile might suggest. The more consequential questions are about health and the minimisation of heritable disease risk.
One technical point worth discussing with your clinic before selecting a donor: blood type compatibility. If it matters to you that the child's blood type could plausibly match yours, or that there's no risk of Rh-incompatibility in a subsequent pregnancy, that's a clinical consideration to raise in advance.
Prices vary considerably. A single dose (sufficient for one IUI attempt) from a European bank typically costs between €500 and €1,200. IVF requires a different type of preparation, and pricing may differ. Before committing, clarify what the price includes: the frozen sample itself, quarantine storage, quality certificates, and delivery. Some banks charge separately for access to extended profiles, photographs, or audio recordings. None of that is unreasonable — but billing surprises are frustrating.
If you're planning multiple attempts or potentially a sibling pregnancy from the same donor, ask whether it's possible to reserve additional doses. Some banks allow you to ring-fence vials for future use — at a storage cost, but without the risk of the donor being exhausted.
Not every clinic works with every bank. Some clinics have their own banks or exclusive supplier arrangements. Others accept material from any accredited bank but require specific documentation standards. If you've already chosen a clinic, ask which banks it works with or can accept material from. If you're starting with the bank, confirm that it can deliver to your clinic and that your clinic is willing to use the material. This sounds obvious but is a genuine source of complications.
Also ask: will the bank communicate directly with your clinic on documentation? How accessible is the bank if questions arise about a specific sample? Quality of service isn't a minor consideration — especially if you're receiving treatment in another country.
Before making a decision, ask these questions in writing — so you receive written answers: Which specific genetic tests does every donor undergo? Please provide the full list. How long has your bank been operating and in which countries are you licensed? What is your family limit per donor — by country and globally? What happens if a sample doesn't meet the stated post-thaw motility figures? How long do you retain donor data and what happens to it if the bank's ownership or status changes? Can I reserve additional doses from a specific donor for future use? How is delivery organised and who is responsible for sample integrity until it is received at the clinic?
A bank that answers these questions clearly and willingly is a good sign. A bank that hedges, gives vague answers, or directs you to read an FAQ is worth thinking twice about.
Choosing a sperm bank is a decision that should be driven by protocols, not aesthetics. Start with the bank itself — its licence, its screening, its data policies, its family limits. Then choose a donor within that bank.
A good bank isn't the one with the most appealing website or the most expansive profiles. It's the one that is transparent about what it does, honest about its limitations, and willing to answer specific questions specifically.
And finally: there is no perfect donor, and there is no perfect bank. There is an informed choice made on the basis of available information — and that is everything that's possible and necessary.
Anonymous donor — a donor whose identity is not disclosed to the recipient or the child under any circumstances. Whether anonymity is permitted is determined by the law of the relevant country.
CMV (Cytomegalovirus) — a widely prevalent virus that usually causes no symptoms in healthy adults, but may be harmful during primary infection in pregnancy. CMV status of donor and recipient is taken into account by some clinics when selecting material.
ECS (Expanded Carrier Screening) — a comprehensive genetic panel that tests for carriership of hundreds of recessive conditions. The scope varies between banks: from around 100 to over 500 conditions.
EUTCD — the EU Tissues and Cells Directive. Sets quality and safety standards for the donation, procurement, testing, processing, storage and distribution of human tissues and cells within the EU.
ID-release donor (open donor) — a donor who has consented to the release of identifying information to any child born from their donation upon reaching a specified age, usually 18. Does not imply obligatory contact.
Karyotype — an analysis of a person's chromosomal make-up. Used to identify major chromosomal abnormalities.
Quarantine period — the required storage period for a donated sample (typically six months), after which the donor is retested for infections. Protects against cases where a donor donated during the incubation period of a disease.
Rh factor — a protein on the surface of red blood cells. Rh incompatibility between a mother and foetus can cause immune complications; relevant when selecting a donor if the recipient is Rh-negative.
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