Recently, there has been a lot of concern raised by news of a Danish sperm donor who was a carrier of a genetic mutation associated with an increased risk of cancer. These samples were used for years in various European countries, including Spain. We would firstly like to begin this article with a clear message: this scenario will never occur in our current clinical practice at IGIN.
Understandably, we have received inquieres from worried patients in light of this information. We believe it is important to provide context, rigorous information and reassurance, by explaining exactly what happened and why this is an exceptional case, linked to past donations and a regulatory framework that has since had a radical change.
What exactly happened?
According to the information that was published by various media outlets, the donor carried a rare genetic mutation associated with Li-Fraumeno syndrome, which increases the risk of developing certain types of cancer over the course of a lifetime.
This donor began donating his sperm many years ago, at a time when the genetic tests available did not allow this type of mutation to be routinely detected. His samples were distributed over a long period to clinics in different countries, without a single international system in place to centrally monitor their use.
As a result, the same donor went on to produce a very high number of offspring in different countries, something that is hard to imagine in todays world, but was possible at the time due to the lack of international coordination and traceability.
Why is this an exceptional case?
This case brings together several highly unusual circumstances:
- An extremely rare genetic mutation.
- Donations made over many years.
- International distribution of semen without a shared European registry.
- The absence, at that time, of traceability systems like those in place today.
It is not a matter of specific clinic's isolated failure, but instead an example of the limitations that existed years ago in regulation and international coordination, especially when dealing with sperm banks operating across multiple countries.
How does the system work in Spain today?
Spain's assisted reproduction framework is one of the strictest in Europe. It requires:
- A complete medical history of the donor.
- Medical and psychological evaluation.
- Comprehensive genetic testing.
- Very clear legal limits on the number of children born per donor.
- Mandatory traceability of every sample used.
In addition, since 2018 Spain has had a key tool in place to further strengthen safety.
SIRHA: traceability and control
Since 2018, SIRHA (the Assisted Human Reproduction Information system) has been in place, a national registry that assigns a unique code to each donor and to each sample.
This system makes it possible to:
- Know exactly how many times a donor has been used throughout the entire national territory.
- Prevent duplication between clinics.
- Automatically block the use of a donor once legal limits are reached.
- Guarantee real, centralized traceability.
Thanks to this system, a scenario like that of the Danish donor would today be extraordinarily unlikely within Spain's regulated system.
Clinical practice here at IGIN
At IGIN, in addition to strictly complying with all Spanish regulations and with the SIRHA registry:
- We do not work with foreign sperm banks.
- All donors go through selection and monitoring pathways that fully comply with Spanish legislation.
- Comprehensive genetic studies and thorough checks are carried out before any sample can be used.
This means that the case described in the news is not part of our clinical practice or our operational workflows.
Reassurance
We understand that news like this can cause concern, especially for people who are currently undergoing treatment or considering it. However, it is important to distinguish between:
- Exceptional cases linked to past donations and regulatory contexts that have since been superseded.
- The current functioning of the Spanish system, which is based on regulation, control, traceability and safety.
Assisted reproduction in Spain today relies on mechanisms that minimize risks and allow treatments to be offered with the highest possible guarantees.
If you have any questions or need further information, our team is always available to address them with the utmost transparency.