Embryo Grading Report

We finally got our embryo grading report! We hadn’t received any information on how the embryos were developing, and it was great to finally get a look. This embryo grading report is a lot different from the ones we’ve received in the US; but it was pretty easy to figure it out. To summarize, we had 18 mature eggs, which were fertilized and grown to day 3. One of the embryos didn’t make it, so we ended up having 17 embryos. 14 embryos were frozen after making it to day 3 as 8 celled, as you can see below (they are marked as 8bl,l). 7 embryos made it to day 5 as blastocysts, and the best three were transferred to the surrogate, while the other 4 were frozen. We were a bit surprised, because our original plan was to only grow 3 to the blastocysts stage without doing the preimplantation genetic diagnosis (PGD), as the process involves taking out a cell from the embryo, which can cause the embryo to fail, as any disturbance to the embryo can cause damage. Embryos of bad quality does not result in a baby that has issues of some sort; rather, it results in no pregnancy at all.

According to the report below, they actually grew out another 4 to blastocysts stage before freezing them. When I emailed my case manager about this, she assured me that if the transfer should fail, that we could take any of the day 3 embryos and have PGD completed, which determines if there are any genetic issues in the embryo, and also what sex the embryos are. I’m guessing that the clinic wanted to freeze a few more blastocysts in case we changed our mind about doing the PGD. Either way, we’re happy to know that we have plenty of backup embryos just in case we need to try again, or if we decide to have another child in the future.
I find it interesting that we had so many embryos from this round of IVF, where in the past, we had about 10 day 5 blastocysts, which isn’t a bad haul either. We wondered why we had so many this time, and came to the conclusion that maybe the eggs were in better shape because they let them grow out to past the usual threshold that we’ve had in the past, where they would trigger when the follicles were around the 16 – 18mm range. The last ultrasound we had showed the follicles being size 12mm – 19mm, and I had another day of stimming and the Lupron trigger, before coasting to the egg retrieval. In theory, that means the 19mm could have grown to 25mm, although I have no idea what size the follicles were at retrieval. So this is just a theory that we came up with, and we might be completely wrong, so take this with a grain of salt.


  • lindcey hawks

    Good job! I had 300 menopur and 300 gonal-f all throughout my cycle until I hit day 8-10 (350 menopur) to make the follicles to get much bigger. They pushed it to day 11 before I went in for ER for the small ones to catch up. With 10 eggs retrieved. The biggest follicle measured 27mm and smallest was 18mm. Dr said those were good results so we could proceed further.

  • amaluis

    tWe all get prepared from the very beginning that there are many cases of embryos with poor grades that make pregnancies. And perfect embryos that do not. Also, no matter the grading system, the embryo grades do not tell us what is going on inside the embryo genetically!! They also assign a grade to designate how much the embryo is expanded. I’ve found this on the internet time ago.~
    Very Early Blastocyst, in which the cavity is just beginning to form in the embryo and the cell types are not yet distinguishable;
    Expanded Blastocyst, in which the cavity is fully formed, the embryo contains 100 to 125 cells, but is still contained within the thinned ZP, and
    Hatched Blastocyst, in which the embryo is outside of the ZP, and contains upwards of 150 cells.
    Nature does make wonders!

  • Alexia

    Well done. Our dr once told us that at the moment of fertilization, your baby’s genetic make-up is complete, including its sex!! Blastocyst implantation after day 5 is beneficial. because it leads to more viable embryos that have already overcome possible developmental hurdles. BioTex deals with that. An embryologist makes an assumption about an egg or embryo’s maturity and potential viability based on their own experience and expertise. But still there is no clear cut way to evaluate whether an embryo will result in a successful pregnancy.

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