The Dutch Ministry of Health has issued a startling reinterpretation of long-standing fertility regulations, potentially absolving clinics that exceeded sperm donor limits of any legal consequences. The shift comes after years of reporting revealed that fertility centers routinely allowed donors to father far more children than the accepted maximum, raising profound questions about accountability and patient safety.
For decades, the prevailing norm in the Netherlands held that a sperm donor could father a maximum of 25 children. However, in a latest legal interpretation confirmed this week, the Ministry of Health, Welfare and Sport (VWS) and the Health and Youth Care Inspectorate (IGJ) are classifying that limit as mere “advice” from 1992 rather than a binding professional standard. The move has sparked immediate backlash from lawmakers and patient advocates who argue it effectively erases the rights of donor-conceived children and their families.
“I fear that the clinics in trouble are trying to escape the legal consequences of their failure. Just like the ministry,” said Diederik van Dijk of the SGP party. Lisa Vliegenthart of the Pro party added, “With this, responsibility seems to be evaded.”
A Decades-Old Norm Reinterpreted
The controversy centers on a guideline that has governed Dutch fertility clinics for over thirty years. Investigations, including extensive reporting by Nieuwsuur, have shown that clinics regularly exceeded the 25-child cap. In some documented cases, at least 85 men fathered as many as 70 children each through clinic donations. These “mass donors” create complex genetic webs that can lead to inadvertent consanguinity and significant psychological distress for donor offspring.
According to the ministry, the inspectorate informed them last summer that the norm was technically an “advice” from 1992. Minister Sophie Hermans (VVD) stated there was “variation in how clinics had implemented the [advice] in practice,” making it difficult to view the 25-child maximum as a professional standard with retroactive effect.
This interpretation suggests that clinics which overshot the limit may be cleared of legal prosecution. It also shields the inspectorate, which is tasked with overseeing these clinics, from liability for failing to enforce the limit during the years violations occurred.
Political and Expert Backlash
The reaction from the Dutch House of Representatives (Tweede Kamer) has been swift and critical. A majority of parliamentarians, spanning both opposition and coalition parties including Pro, SGP, ChristianUnion, CDA, D66, and the Markuszower Group, are demanding clarification from the minister.

“It is worrying and undesirable that uncertainty has now arisen. As far as we are concerned, the norm as it applied in the past was always clear,” said Andre Poortman of the CDA. Several parties are calling for an investigation into the misconduct at fertility clinics to explicitly include the role of the inspectorate and the ministry. “Only in this way can trust be restored,” Vliegenthart said.
Legal and medical experts have expressed disbelief. Johan Legemaate, emeritus professor of health law, said he is “flabbergasted” by the new explanation. He argues there can be “no misunderstanding” that the 25-child norm was intended as a professional standard to be followed. His view is supported by Professor Mirjam Sombroek van Doorn of Law and Health, who noted the norm was “not just an idea” but a “weighty medical and human insight.”
Pim van Gool, former chairman of the Health Council, recalled a 2013 advisory report on the matter. He stated it was “crystal clear” at the time that the norm lay at a maximum of 25 children and was treated as a guideline for the profession.
Timing and Internal Documents
The inspectorate’s new interpretation emerged shortly after Nieuwsuur reported last June that the Medisch Centrum Kinderwens in Leiderdorp had created dozens of mass donors over an eleven-year period. An internal ministry memo dated June 17, 2025, obtained by Nieuwsuur, acknowledges that while the clinic is primarily responsible for unlawful acts, the government could also be liable if there was failing supervision.
However, the ministry subsequently argued that the inspectorate could not enforce the donor limit because it was not legally established at the time and exceptions were possible. This reasoning appears to exempt the state from liability for misconduct stemming from failed oversight.
It was only last year that a maximum number of families a man may donate to was firmly established in law. Yet, experts maintain that the lack of specific statutory wording prior to that date does not negate the obligation to follow professional standards under the 1995 law.
What was the original limit for sperm donors?
The established norm was a maximum of 25 children per donor. This guideline had been in place for decades before being codified into law last year.
Why is the ministry changing its stance now?
The Ministry of Health and the Inspectorate now classify the 1992 limit as “advice” rather than a binding professional standard. They argue that variations in how clinics implemented the advice make it difficult to enforce retroactively.
What are the consequences for donor families?
Advocacy group Stichting Donorkind calls the move “almost unimaginable,” arguing that donor children, parents, and donors were misinformed for decades. The reclassification could limit legal recourse for families affected by mass donation practices.
What happens next in parliament?
A majority of the House of Representatives is demanding clarification from Minister Sophie Hermans. Multiple parties are pushing for an investigation that includes the role of the ministry and inspectorate to restore public trust.
As the debate moves to the floor of the House of Representatives, the central question remains whether a regulatory body can redefine a safety standard after the fact to avoid liability.



