Nonpronuclear- and monopronuclear-derived blastocysts do not impair subsequent perinatal and maternal outcomes

The routine clinical practice is to prioritize the transfer of blastocysts derived from 2PN embryos if they are available. For women who only have blastocysts resulting from 0PN and 1PN embryos, whether to transfer these embryos or discard them has been an ongoing debate over the years.