The American Society for Reproductive Medicine (ARSM) has a series of recommendations about the number of embryos to transfer, according to the age of the women and the origin of eggs. The above table summarizes the recommendations for transfer of day blastocysts.
If the eggs used were from a donor, single embryo transfer should be the procedure of choice, or two at the most. It is not recommended to transfer 3 embryos. This is the same as for a women under 30 years of age who is using her own eggs.
If, however, the woman is between 30 and 37 years old, the ideal situation is to transfer 1 or 2 embryos. In cases with a poor prognosis, the transfer of 3 embryos can be considered, as with women over 37 years old.
Read the full article on: Embryo transfer: How many embryos should be transferred in IVF? ( 37).
By Aitziber Domingo Bilbao B.Sc., M.Sc. (embryologist), Gorka Barrenetxea Ziarrusta M.D., Ph.D. (gynecologist), Laura García de Miguel M.D., M.Sc. (gynecologist), Manuel Fernández M.D., Ph.D. (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), Rebeca Reus BSc, MSc (embryologist), Michelle Lorraine Embleton B.Sc. Ph.D. (biochemist) and Sandra Fernández B.A., M.A. (fertility counselor).
Last Update: 09/05/2022
