Monozygotic twinning itself after elective single embryo transfer is uncommon, occurring in no more than roughly 3% of cases.

NEW YORK (Reuters Health) - Women undergoing assisted reproduction may be interested to learn that transfer of a "blastocyst-stage" embryo increases their odds of having a boy. Blastocytes are the ...

"Preimplantation genetic testing for aneuploidy (PGT-A) has emerged as a powerful tool in assisted reproductive technology, offering the potential to enhance the chances of successful embryo ...

With the increasing acceptance of blastocyst transfer technologies, more attention is being paid to the selection of ...

At some point in our evolution, we lost the ability to activate a reproductive mechanism called embryonic diapause, which slows development, usually during the blastocyst stage. And so, unlike mammals ...

For women who are carriers of mitochondrial diseases, one particular in vitro fertilization (IVF) procedure for having a healthy baby appears to be safe, according to new research. This option, called ...

In two papers published in 2004 and 2005, the South Korean team of now-discredited Woo Suk Hwang reported, first, that it had succeeded in creating cloned human embryos via nuclear transfer and, later ...

At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses gently into the receptive lining ...