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How many day 3 embryos make it to blastocyst?

By Zaira Salvador.
Last Update: 02/28/2018

It is estimated that only 20 to 50 percent of day 2-3 embryos are actually able to develop in vitro to day 5, irrespective of the quality of the culture system used. So, one of the main risks of extended culture to day 5 is that there may be a loss of some embryos that would have implanted if they had been transferred earlier.

Suggested for you: Day 5 vs. Day 3 Embryo Transfer – What Are the Pros & Cons?.

 Zaira Salvador
Zaira Salvador
BSc, MSc
Embryologist
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)
License: 3185-CV
Embryologist. 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) License: 3185-CV.
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