Most long-term health outcomes appear similar between children conceived through IVF and those conceived without fertility treatment. A few small differences have been reported, but some may be related to the parents’ underlying infertility rather than the fertility treatment itself.
A 2025 case report describes two IVF patients who conceived triplets from a single embryo transfer and offers insight into just how rare this is.
This post explains how embryos can split during IVF, especially at the blastocyst stage. It covers the timing of splitting, the different types of identical twins, the factors that make splitting more likely, and how IVF labs can reduce the risk of twins after single embryo transfer.
Researchers in 2023 provided evidence-based guidelines for deciding how many embryos to transfer, as prepared by ESHRE.
Researchers in a 2023 study found decreased adverse pregnancy and neonatal outcomes in those who performed a natural vs medicated FET, including abnormal birth weights, preeclampsia, preterm births, and more.
Researchers in a 2022 study found an increase in childhood cancer rates in children born from frozen embryo transfers (FETs) compared to fresh transfers or spontaneously conceived births, however the small sample size of those affected with cancer make it hard to draw conclusions.
