A fertility clinic mix-up has turned two Danish families’ lives upside down. More than twenty years after treatments, a DNA test revealed that a man unknowingly fathered twin boys born to another couple.
An unexpected phone call
One ordinary day, Jesper Milo received a strange call from a genealogist claiming to have news that would change his life. At first, Milo assumed it was a scam. But when the caller mentioned the Brædstrup Fertility Clinic, where Milo and his then-wife once underwent treatment, he began to listen.
Moments later, the genealogist explained that two 22-year-old men had discovered their father was not their biological parent. DNA results suggested the biological link was to Milo. Confused and skeptical, he initially refused to believe it. Not long after, further testing confirmed the stunning truth—Jesper Milo was indeed the biological father of twin brothers Frederik and Mathias Nissen.
A decades-old error
To understand how such a mistake could happen, one must go back to 2002, when two couples—Jesper and Birgitte Milo, and Rikke and Søren Nissen—both turned to fertility treatment at the same clinic in Brædstrup. The Nissens successfully conceived twins, while the Milos experienced a devastating miscarriage five months into pregnancy.
For more than two decades, the Nissens believed that Frederik and Mathias were their biological sons. It was only after the twins took a DNA test out of curiosity that they learned the shocking truth: their biological father was someone else entirely.
Interestingly, Frederik had long felt that something was off. As a child, he even asked if he might have been adopted. That intuition turned out to be correct.
The families’ reaction
When Milo learned the results, he was deeply shaken but also empathetic. He felt sorry for Søren Nissen, who suddenly learned that his sons were not genetically his. Despite everything, Milo emphasized that Søren remained the boys’ real father in every emotional sense.
After confirming paternity through testing, Milo and his ex-wife also retested their own children and even sought lab analysis of tissue from their lost pregnancy. All results confirmed Milo’s biological connection to his own children. Still, the family wonders if there could be more cases stemming from that same clinic.
Meeting the twins
Months after the discovery, the moment finally came when Jesper Milo met Frederik and Mathias in person. Seeing them face to face was overwhelming, he said, and the meeting quickly developed into a warm connection between the two families.
Even though uncertainty remains about how close they should become, they now meet regularly. The twins expressed that they want to keep the relationship alive. Milo says he is grateful for the bond that has formed between the families despite the circumstances.
Frustration with the system
Both families are frustrated by the lack of accountability from the Danish healthcare system. The Brædstrup clinic has since become part of Regionshospitalet Horsens, but according to both families, officials have not taken responsibility.
The hospital claims that, after two decades, it is impossible to determine exactly what happened or to identify all those possibly affected. Due to ethical laws, they cannot contact former patients for new DNA testing.
This case highlights how vulnerable families remain long after fertility treatments. It also raises tough questions about traceability and oversight in the Danish healthcare system.
Sources and References
The Danish Dream: Danish healthcare explained for tourists & expats
The Danish Dream: Best private hospitals in Denmark for foreigners
TV2: Han fik pludselig to 22-årige sønner, som han ikke kendte til
