Many embryos ruled out in IVF “self-correct”

In 10 seconds? Some ‘faulty’ embryos that are normally discarded in IVF can self-correct in the womb and result in healthy pregnancies. So-called ‘aneuploid embryos’ are flagged up in a genetic test before implantation. The finding could improve women’s chances of having healthy pregnancies.

So, what does the research say? According to a clinical study from April 2021, aneuploid embryos can actually result in healthy babies, suggesting the presence of an in vivo (in the womb) mechanism to eliminate aneuploidy – the abnormal chromosomal count that up to now has been a red flag stopping the implantation of such embryos in the womb. The study described 32 women who agreed to receive blastocysts (fertilized eggs that are rapidly on their way to becoming an embryo) that came up as aneuploid in PGT-A testing.