A frozen embryo transfer (FET) is performed following the same steps as if fresh embryos were used. The main difference is, however, that frozen embryos don't go through the fertilization and transfer step, but through the freezing and thawing phases.
Fresh vs. frozen embryo transfer
By Edurne Martínez Sanz BSc, MSc (senior clinical embryologist), Gorka Barrenetxea Ziarrusta MD, PhD (gynecologist), Dr. Juan José Espinós Gómez MD, PhD (gynecologist), María Eugenia Ballesteros Moffa MD, MSc, BSc (gynecologist), Rebeca Reus BSc, MSc (embryologist) and Romina Packan (invitra staff).
Last Update: 10/05/2018