According to the latest report of the Spanish Fertility Society (SEF) for the year 2023, the pregnancy and delivery rates for frozen embryo transfers are similar to those of fresh embryo transfers.
The gestation rate for fresh PGT embryo transfer is 45.8% and, on the other hand, for frozen embryos it is 53.2%.
As for the delivery rate per transfer, while the rate for fresh embryos is 37.5%, the delivery rate for frozen embryos is 41.8%.
The statistical data shown here should not be used to imply or predict a certainty of outcome for a specific individual within an at-risk population.
Read the full article on: What is embryo vitrification? How and when is this procedure used? ( 56).
By Álvaro Martínez Moro B.Sc., M.Sc. (embryologist), Blanca Paraíso M.D., Ph.D., M.Sc. (gynecologist), Mark P. Trolice M.D., F.A.C.O.G., F.A.C.S., F.A.C.E. (reproductive endocrinologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist) and Michelle Lorraine Embleton B.Sc. Ph.D. (biochemist).
Last Update: 03/05/2026
