No IQ, No Donation? Why Some Sperm Banks Are Rejecting Nearly One in Five Donors
When Genetics Meets Ethics
In the world of fertility medicine, screening sperm donors is nothing new. Clinics already evaluate potential donors for medical history, genetic disorders, and overall health. But a rule introduced by a Danish sperm bank has sparked a fresh debate — because it adds something far more controversial to the checklist: intelligence.
The policy states that men with an IQ below 85 will not be accepted as sperm donors. As a result, roughly 18% of potential applicants are reportedly rejected during the screening process.
The decision has quickly ignited discussion about where science ends, and ethical questions begin.
1. The Rule That Changed the Screening Process
The Danish sperm bank Cryos International, one of the world’s largest providers of donor sperm, already carries out detailed background checks on applicants. The new guideline adds an IQ threshold, requiring donors to score at least 85 on standardized intelligence tests before they can qualify.
2. Why Clinics Use Strict Filters
Fertility clinics often argue that donors are screened rigorously because recipients want reassurance about genetic health, education levels, and overall background. For many parents using donor sperm, transparency about traits and medical history plays a significant role in the decision-making process.
3. The Numbers Behind the Policy
According to reports, the IQ rule alone disqualifies nearly one in five applicants. When combined with other criteria — such as physical health, genetic history, and personal background — only a small fraction of candidates ultimately become donors.
4. The Ethical Debate
The policy has triggered broader discussions about genetic selection. Critics argue that introducing intelligence thresholds risks drifting toward modern forms of eugenics, where certain traits are favored over others.
5. The Bigger Question
Supporters say the screening simply reflects what many prospective parents already consider privately. Opponents warn that such rules blur the line between responsible medical screening and designing future generations.
Because once genetics becomes a checklist, society has to decide where the line should be drawn.