Sperm Donor Selection — How to Choose the Right Donor

Choosing a sperm donor is one of the most personal decisions in fertility medicine. Whether you are a single woman, a same-sex couple, or a heterosexual couple facing male factor infertility, the process requires evaluating medical safety, genetic risk, identity considerations, and — ultimately — your own values and intuition.

This guide covers how to evaluate sperm banks, what donor screening involves, how to read and compare donor profiles, CMV considerations, identity disclosure research, and the practical differences between vial types for insemination.

Choosing a Sperm Bank: What to Evaluate First

Not all sperm banks are equal. Before browsing donor profiles, verify that any bank you are considering meets baseline regulatory and clinical standards.

FDA Registration

Under 21 CFR Part 1271, sperm banks that distribute donor semen across state lines must be registered with the FDA as tissue establishments. This registration requires compliance with donor eligibility determination, infectious disease testing, and recordkeeping requirements. You can verify registration at the FDA's HCT/P establishment database.

Do not use a sperm bank that is not FDA-registered for interstate donor semen distribution.

ASRM Compliance

The American Society for Reproductive Medicine publishes guidelines on gamete donation, including sperm donor screening. Reputable banks adhere to ASRM's recommendations, which go beyond FDA minimums to include:

• Expanded genetic carrier screening (200+ conditions)
• Karyotype analysis
• Psychological evaluation
• Extended family medical history (3+ generations)
• Semen quality parameters exceeding FDA minimums

Genetic Testing Panel Depth

This is an area where banks differ significantly. Standard FDA testing requires only basic infectious disease screening. Top-tier banks additionally offer:

• Expanded carrier panels: 200-500+ conditions including cystic fibrosis, spinal muscular atrophy, fragile X (males), sickle cell, Tay-Sachs, BRCA1/2 (some banks), and phenylketonuria
• Karyotype: Standard chromosomal analysis to rule out major structural abnormalities
• Y-chromosome microdeletion analysis: Relevant for male offspring conception
• Whole exome sequencing: Offered by a small number of premium banks

When comparing banks, ask specifically: what genetic panel do you run on donors, and are full results available to recipients?

Established Track Record

Length of operation, number of successful pregnancies reported, and transparency about pregnancy rate data are meaningful signals. Larger banks (California Cryobank, Fairfax Cryobank, Seattle Sperm Bank, Xytex, NW Cryobank) have larger donor pools and longer track records than regional or newer operations.

Understanding Donor Categories: Open-Identity, Anonymous, and Known Donors

Anonymous Donors

Historically, most sperm donation was anonymous — donors' identities were never disclosed to recipients or donor-conceived offspring. Many older banks still offer anonymous donors, and some donors specifically choose anonymity.

Important caveat: True anonymity is increasingly difficult to maintain. The proliferation of consumer DNA testing (23andMe, AncestryDNA) means that donor-conceived individuals who test can often identify their biological father through matching with genetic relatives, even if the donor registered as anonymous. A 2018 study in Science estimated that 60% of Americans of European ancestry can be identified through third-cousin or closer matches in consumer databases — a figure that has only grown. Families and donors should be aware that "anonymous" is now a legal construct more than a biological reality.

Open-Identity Donors

Open-identity (also called "identity-release") donors agree to have their identifying information (name, last known contact) provided to any donor-conceived child who requests it at age 18. The California Cryobank pioneered this model in the US; it is now the standard at most major banks.

What the research shows: Studies on donor-conceived individuals consistently find that many want access to information about their genetic origins. A landmark 2010 study (Scheib, Riordan, and Rubin, published in Human Reproduction) followed donor-conceived adolescents who used open-identity donors and found that the majority expressed desire to contact their donor at 18, with positive reported experiences for most who did. Importantly, the research did not show that access to donor identity caused confusion about who the "real" parent was — children raised with honest disclosure understood clearly that their donor was not their father/parent in a social or legal sense.

Known Donors

A known donor is someone you personally know — a friend, relative's friend, or acquaintance — who agrees to donate sperm. This path has distinct medical and legal requirements (see our Known Donor vs Sperm Bank guide), including FDA 6-month quarantine rules and mandatory legal agreements.

Considering Conception at Home?

If you're using donor sperm outside a clinical insemination protocol, at-home insemination is a path worth understanding.

MakeAMom makes reusable at-home insemination kits for individuals and couples trying to conceive outside a clinic — including those using donor sperm. The CryoBaby kit is specifically designed for frozen sperm, which is the format most sperm banks ship in.

Explore home insemination kits at MakeAMom →

Reading Donor Profiles: Key Elements

Medical and Family History

A thorough donor profile includes at least three generations of family medical history covering:

• Cardiovascular disease (heart attack, stroke, hypertension)
• Cancer (type and age of onset)
• Diabetes (Type 1 and Type 2)
• Mental health conditions (bipolar disorder, schizophrenia, major depression)
• Autoimmune disorders
• Neurological conditions
• Hereditary conditions specific to donor's ethnic background

Review this section carefully and, if possible, discuss it with a genetic counselor. A donor with a first-degree relative who had early-onset Alzheimer's or BRCA-positive breast cancer carries meaningfully different risk than a donor whose grandparent had Type 2 diabetes at 75.

Physical Traits

Height, weight, eye color, hair color and texture, skin tone, and facial features are standard. Many banks offer childhood photos; some offer adult photos for an additional fee. Audio interviews are offered by some banks and can give a richer sense of personality and communication style.

Education and Occupation

Donors typically report their highest educational attainment, field of study, and occupation. Standardized test scores are sometimes voluntarily included. ASRM guidelines explicitly caution against placing excessive weight on academic achievement, which is only partially heritable and shaped heavily by environment and opportunity.

Genetic Carrier Screening Results

You will see which conditions the donor is a carrier for. Being a carrier for a single recessive condition (e.g., cystic fibrosis) is common — approximately 1 in 25 people of Northern European ancestry are CF carriers — and is not disqualifying. The question is whether you are also a carrier for the same condition. If both you and a donor are carriers, each pregnancy would have a 25% chance of an affected child. Your reproductive endocrinologist or genetic counselor can help evaluate this.

Semen Analysis Parameters

Reputable banks report donors' semen analysis results, including:

• Concentration: Sperm per milliliter (normal >15M/mL per WHO criteria)
• Motility: Percentage of moving sperm (normal >40% total motility)
• Morphology: Percentage of normally shaped sperm (normal >4% by strict Kruger criteria)
• Post-thaw parameters: Critical — how does the sample perform after freezing and thawing? This is what actually matters for your cycle

Prioritize post-thaw motility. Some donors have excellent fresh parameters that drop substantially after cryopreservation. A bank that reports post-thaw motility above 40% per IUI straw is providing a meaningfully better product than one reporting only pre-freeze numbers.

CMV Status: An Underappreciated Consideration

Cytomegalovirus (CMV) is a common herpesvirus that is generally harmless in healthy adults but can cause serious fetal complications if a non-immune (CMV-negative, or "seronegative") woman acquires a primary CMV infection during pregnancy.

The CMV Mismatch Issue

If a recipient is CMV-negative (has no prior immunity), using a CMV-positive donor creates a theoretical risk of transmission. In practice, transmission through frozen donor sperm is extremely rare — studies have not documented a confirmed case of CMV transmission via properly processed frozen donor sperm — but many programs and recipients prefer to avoid the theoretical risk entirely.

ASRM guidance states that CMV-seronegative recipients may use CMV-seropositive donors when CMV-seronegative donors are not available, provided appropriate counseling is given. Some programs limit CMV-positive donor use only to CMV-positive or immune recipients.

Practical impact on donor selection: If you are CMV-negative, filtering for CMV-negative donors will reduce your available donor pool. Some individuals in this position prioritize their other selection criteria and discuss CMV mismatch management with their physician.

CMV Testing and Documentation

Any FDA-compliant sperm bank will test and clearly document CMV IgG and IgM status for all donors. This information should be prominent in the donor profile.

Vial Types: IUI-Ready vs ICI-Ready

Sperm banks typically offer multiple vial types. Understanding the difference is essential for selecting the right product for your clinical protocol.

ICI-Ready (Intracervical Insemination)

ICI vials contain unwashed sperm in a seminal plasma medium. They are designed for intracervical insemination — placing sperm at or near the cervical opening — and for home insemination. The seminal plasma is left intact. ICI vials are the appropriate choice for home insemination.

IUI-Ready (Intrauterine Insemination)

IUI vials contain washed, concentrated sperm in a culture medium free of seminal plasma. This preparation is required for intrauterine insemination because introducing seminal plasma directly into the uterus can cause severe cramping and uterine irritation. IUI vials are required for clinical IUI procedures.

Motile Sperm Per Vial

Banks typically report the total motile sperm count (TMSC) per vial. For IUI, most reproductive endocrinologists prefer a post-thaw TMSC of at least 5-10 million motile sperm. For ICI and home insemination, higher counts are preferred to compensate for natural attrition during transit through the cervix.

When comparing donors, factor in both price per vial and TMSC per vial — a higher-priced vial with substantially more motile sperm may represent better value.

Identity Disclosure to Children: What Research Shows

The question of whether, when, and how to disclose donor conception to children is one of the most important decisions recipient families face. A growing body of research provides clear guidance.

Early Disclosure Is Associated with Better Outcomes

A meta-analysis and multiple longitudinal studies, including work by Susan Golombok at the University of Cambridge Centre for Family Research, consistently show that children who are told about their donor conception early — typically by age 3-4, in age-appropriate language — fare as well as or better on psychological measures than those told later or not at all. They show no difference in attachment, self-esteem, or family relationships compared to other family types.

Late or Non-Disclosure Carries Risks

The Scheib et al. research and Golombok's longitudinal studies both document cases where late disclosure (in adolescence or adulthood) caused significant distress — not primarily because of the donor conception itself, but because of the perceived secrecy and breach of trust from parents. Many donor-conceived adults who were told late report more distress about the concealment than about the biological reality.

The "My Daddy's Name Is Donor" Study

The 2010 My Daddy's Name is Donor study (Marquardt, Glenn, and Clark, from the Commission on Parenthood's Future) surveyed a large cohort of donor-conceived young adults. Key findings: a significant minority (up to one-third in some measures) reported identity struggles and desired more information about their donor. The study raised important questions about the psychological weight of genetic identity that have since been influential in shaping ASRM recommendations toward open-identity donation and early disclosure.

Donor Sibling Registry

The Donor Sibling Registry (DSR), founded in 2000, now connects tens of thousands of donor-conceived individuals with their half-siblings and sometimes with donors. It is a valuable resource for families who want to be proactive about their child's potential interest in biological connections — and a reminder that in the age of DNA databases, the donor-conceived community is interconnected whether families plan for it or not.

Comparing Donors: A Practical Framework

When you have narrowed to a short list of donors, consider evaluating each across these dimensions:

There is no single right answer to donor selection. Some recipients place the greatest weight on medical genetics; others prioritize identity options for their future child; others focus on physical compatibility. All of these are valid approaches.

Key Takeaways

• Verify that your bank is FDA-registered and ASRM-compliant before browsing profiles
• Genetic carrier panel depth varies significantly between banks — ask specifically
• CMV mismatch is a theoretical concern; discuss management with your physician if you are CMV-negative
• Post-thaw semen parameters matter more than pre-freeze numbers
• IUI-ready vials are required for clinical insemination; ICI vials are appropriate for home insemination
• Open-identity donation is now the standard at most major banks — and research supports it
• Early disclosure to donor-conceived children is associated with better outcomes

For LGBTQ+ family-building contexts and additional donor considerations, see our LGBTQ+ Fertility Options Guide. If you are considering home insemination as a single woman, see Home Insemination for Single Women.

Frequently Asked Questions

Q: How do I verify that a sperm bank meets regulatory standards? A: Confirm FDA registration — under 21 CFR Part 1271, sperm banks that distribute donor semen across state lines must be registered as tissue establishments. You can verify registration at the FDA's HCT/P establishment database. Also confirm ASRM compliance, which requires expanded genetic carrier screening (200+ conditions), karyotype, psychological evaluation, and extended family medical history beyond the FDA minimums.

Q: What is the difference between IUI-ready and ICI-ready vials? A: IUI-ready (intrauterine insemination) vials contain washed, concentrated sperm in a culture medium free of seminal plasma — required for clinical IUI because seminal plasma in the uterus causes severe cramping. ICI-ready (intracervical insemination) vials contain unwashed sperm in seminal plasma medium — appropriate for home insemination, where the cervical mucus acts as a natural filter. Ordering the wrong type for your intended use is a common and avoidable mistake.

Q: Why does post-thaw sperm quality matter more than fresh parameters? A: What matters for your cycle is how the sperm perform after cryopreservation and thawing — some donors with excellent fresh parameters show significant drops after freezing. Reputable banks track and report post-thaw motility. Prioritize donors with documented post-thaw total motile sperm count (TMSC) above 40% per IUI straw; this is a more meaningful predictor of success than pre-freeze numbers.

Q: What does open-identity donation mean for my child? A: Open-identity (identity-release) donors have agreed that when any donor-conceived offspring reaches age 18, they may request the donor's identifying information from the sperm bank. Research by Scheib et al. found that most donor-conceived adolescents who used open-identity donors expressed desire to contact their donor at 18, with positive reported experiences for those who did. ASRM and most major banks now support open-identity as the standard for new donors.

Q: What should I do if my carrier screening results overlap with a donor's carrier status? A: If you are a carrier for the same condition as a donor you are considering, each resulting pregnancy would have a 25% chance of being affected. This is the most clinically important genetic consideration in donor selection. Confirm your own carrier screening results before finalizing a donor, and consult a genetic counselor if you discover a potential match. Most major banks can filter donor searches by carrier status for specific conditions.

This article is for informational purposes only and does not constitute medical or legal advice. Consult your reproductive endocrinologist and a reproductive attorney for guidance specific to your situation.