Blastocyst Culture and Transfer in Clinically Assisted Reproduction:

Committee Opinion 

Some topics covered in this guidance:

• Single-embryo transfer at blastocyst stage and outcomes (e.g, pregnancy rate, live birth)

• Blastocyst and altered sex ratio

• Blastocyst and monozygotic twinning

What are some gaps in blastocyst stage embryo transfer based on this guidance?

• Future studies are needed about selection of embryos destined to blastulate to avoid no-transfer scenarios

Last Reviewed: September 21, 2023