Are 6 eggs enough for IVF?

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2 fertility expert(s) answered this question

Answer from: Raúl Olivares, MD

Gynaecologist, Medical Director & Owner Barcelona IVF
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That will depend on the age of the patient. If the patient is younger than 35, it’s very likely that if we have 6 eggs, we may end up with 2 or 3 good embryos with good implantation chances. If the patient is over 40-42, probably most of these eggs are going to have genetic issues, and we may not get a lot of embryos, or the embryos that we get may have genetic issues.

That’s why the older the patient is, the more eggs we need because we’re going to have fewer embryos or embryos with a higher genetic risk.

So for a patient younger than 35, 6 eggs seem like a good number. If you are older than 40, 6 eggs do not seem to be enough.

Answer from: Anna Voskuilen, MD

Gynaecologist, Specialist in Obstetrics, Gynecology and Reproductive Medicine Reproclinic
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Let me start by explaining that this depends on the age of the patient because it is going to be based on the quality of the eggs. Secondly, every patient responds differently to what we call the IVF funnel. An IVF funnel is this: not all the follicles we see at the beginning of a cycle respond to the medication, not all these follicles will come out in the egg retrieval, not all of these follicles will be mature, not all the mature ones will be fertilized, and not all the ones that are fertilized will arrive at the stage of blastocyst.

So if you ask if 6 eggs are enough to have a good outcome, it will always depend on the response of the patient to the stimulation. But to increase the number of follicles we do mild stimulation protocol for patients that do not respond to normal protocol stimulation, and still we go for IVF, for the egg retrieval and we do this because we know it will help.

In patients with low ovarian reserve where we have fewer eggs we would probably we would need more cycles. Sometimes we do more cycles as some patients accumulate eggs in different cycles. For sure, 6 eggs would be enough to try IVF.

About this question:

Are 6 oocytes enough to go through IVF?

How many eggs should be retrieved for IVF? What is the optimal egg number?
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