It depends on each patient. According to the ASRM and SART guidelines, those with a favorable prognosis should opt for 1 embryo transfer, regardless of embryo stage. From ages 38-40, they recommend 2 blastocyst embryo transfers (day 5), and from age 41, 3 blastocysts (day 5) as well.
Is a day 3 or day 5 embryo transfer better?
By Zaira Salvador (embryologist).
Last Update: 02/28/2018
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)