Is It Better to Transfer Fresh or Frozen Embryos in IVF?

If you’re navigating IVF, you’ve likely wondered if it’s better to transfer an embryo during a fresh or frozen cycle. We asked an embryologist to share their thoughts.

Is It Better to Transfer Fresh or Frozen Embryos in IVF?

Traditionally, most embryos are transferred on a fresh cycle, and whilst this is still common practice, there is growing evidence that in some cases, a patient may have a better chance of success if the embryos are transferred on a subsequent frozen cycle.

This is particularly relevant to those patients who have a very high oestradiol level after the ovarian stimulation. In these cases, the uterine environment may not be as receptive as hoped, so it is better for the embryos to be frozen thereby allowing the ovaries to return to normal and then proceed with a frozen cycle transfer. This also reduces the risk of OHSS (ovarian hyperstimulation) to the patient.

Having said that, most patients have an equally good chance of implantation with fresh and frozen cycles. Once a frozen embryo has been thawed out successfully, it has a very similar implantation potential to a fresh embryo.

Victoria Wigley, All about Embryology

Medical Disclaimer:

The information provided in this blog is intended for general informational purposes only and should not be considered as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your healthcare provider or qualified medical professional with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this blog.