Sean Lauber: Danish Study Explores Childhood Cancer after IVF
Sean Lauber, Founder of Remembryo, shared on LinkedIn:
“A new Danish study found that childhood cancer remained rare after fertility treatment, although rates were slightly higher in some cases.
Mose et al. (2026) reviewed health records for more than 1 million children, including about 37,000 conceived through IVF, ICSI and frozen embryo transfer (FET).
The study reported a 26% higher cancer rate after fertility treatment. This was a relative increase, and it doesn’t mean 26% of children developed cancer. During follow-up, cancer was diagnosed in 0.42% of children conceived through treatment versus 0.34% without it.
These increases were seen in the FET and ICSI groups, but not the conventional IVF group.
Does that mean treatment caused the difference?
Not necessarily. The FET result involved only 23 diagnoses. Small numbers make results more sensitive to chance, and these results should be confirmed with larger studies. Differences in underlying infertility or inherited cancer risk could also contribute.
These children were born between 1996 and 2012. Freezing methods and other IVF practices have changed, so the results might not reflect treatment today.
Check out the full article and more details on Remembryo.
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