- Fresh transfer
- the embryos are not frozen.
- Frozen transfer
- the embryos are vitrified and used in the future, i.e. in another cycle. This is usual when, for example, the patient suffers from ovarian hyperstimulation.
Another case of deferred transfer is when there are surplus embryos since most clinics only transfer a maximum of three embryos.
By Aitziber Domingo Bilbao BSc, MSc (embryologist), Àlex García Faura MD, MSc (gynecologist), José Luis de Pablo BSc, MSc, PhD (senior clinical embryologist), Patricia Recuerda Tomás BSc, MSc (embryologist), Sara Salgado BSc, MSc (embryologist) and Romina Packan (invitra staff).
Last Update: 09/14/2020