IVF Abroad Risks: Donor Limits, Surrogacy, and Oversight

Two men. Two very different intentions. Yet both have reportedly fathered hundreds of children- stories that made headlines this week.

One is a Danish sperm donor who never imagined that his donation would place him at the centre of a world health warning.

The other is a Chinese billionaire, Xu Bo, who has reportedly sought to build a dynasty through dozens of children born via U.S. surrogates.

At first glance, these cases seem unrelated. But together, they expose a troubling truth: the lack of international oversight in assisted reproduction allows significant loopholes- loopholes that can have profound consequences for children and families.

Danish Sperm Donor and the Silent Spread of a Cancer Gene

A Danish sperm donor who donated between 2005 and 2023 is now at the centre of a global health alert after it was discovered that he unknowingly carried a rare cancer-related gene mutation known as TP53.

His sperm was distributed to 67 clinics across 14 countries, resulting in the conception of nearly 200 children, some of whom have already been diagnosed with cancer or are at an increased genetic risk.

How could this happen?

The mutation was present in only a small percentage of his sperm and was undetectable using standard genetic screening methods available at the time of donation. As Professor Allan Pacey explains in the linked article, sperm donors are typically screened only for the most common genetic conditions. Rare or mosaic mutations such as TP53 can slip through, revealing a critical limitation of current screening practices.

Equally alarming is the scale of the issue. While many countries impose limits on how many families a single donor can help, those limits often stop at national borders. Sperm banks operating internationally are not bound by a unified global standard, allowing a single donor’s genetic material to be used repeatedly across jurisdictions.

The European Society of Human Reproduction and Embryology (ESHRE) is now working toward a position on international family limits, an important step in addressing this regulatory gap. However, as Professor Pacey warns, more extensive screening could further reduce an already limited donor pool- highlighting a difficult balance between safety and access.

Beyond the science and policy debates lies immeasurable human cost. Families and children are living with uncertainty, illness, and loss- consequences that cannot be undone. These stories underscore the urgent need for better coordination, transparency, and international safeguards.

Here in Canada, most donor sperm used in clinics is imported from abroad, particularly from the United States and Europe. Learning from this tragedy means enforcing donor limits and advocating for a unified international framework that prioritizes the long-term well-being of future generations.

If the Danish case reveals the unintended consequences of weak oversight, the allegations involving Xu Bo highlight how assisted reproduction can be deliberately exploited.

According to a report by the Wall Street Journal, Xu Bo, a wealthy businessman in China, posted on social media about his desire to have at least “50 high-quality sons.” His goal, he reportedly claimed, was to build a lineage that could eventually take over his business empire.

These claims raised serious concerns in a Los Angeles courthouse, where Judge Amy Pellman and court clerks noticed a disturbing pattern: the same name appearing repeatedly in parentage petitions connected to U.S.-based surrogacy arrangements.

In the summer of 2023, Judge Pellman called Xu Bo in for a confidential hearing, which he attended remotely. During the proceedings, he reportedly stated that he hoped to have 20 or more U.S.-born children, specifically boys.

The judge denied his petition. What happened next remains unclear. According to a post on Weibo attributed to Xu Bo, he later appealed the decision and claims the cases proceeded to trial. The current legal and custodial status of the children born using his genetic material has not been publicly confirmed.

Two Stories: One Glaring Truth

These cases differ in intent, scale, and circumstance – but they point to the same underlying issue: there is no comprehensive international system for monitoring IVF births, donor usage, or cross-border surrogacy arrangements.

Organizations like the Donor Sibling Registry are attempting to fill this gap, but their efforts remain voluntary and limited. Meanwhile, restrictive laws in certain countries drive intended parents to seek IVF and surrogacy options abroad.

Here in Canada, I work with international parents seeking to build their families through ethical, well-regulated surrogacy in British Columbia. When done responsibly, IVF and surrogacy can be life-changing and deeply positive paths to parenthood.

However, these stories remind us why expert guidance, transparent practices, and strong regulatory frameworks are essential. These cases are anomalies- but without proper safeguards, anomalies can and do occur.

IVF and surrogacy should not be feared- but they must be approached thoughtfully. Consulting trusted experts before beginning the journey is not just wise; it is essential for protecting everyone involved, especially the children at the heart of it all.