Fully hatched blastocyst

[FETOCT2021]

Anyone know anything about a fully hatched blast? I had a FET yesterday and as it thawed during the day it started hatching and then fully hatched. My embryologist seemed really excited by this and said it was great, I should have just left it there but Ive been stupid and googled and have read conflicting things. Would love to hear any positive stories 😊

Hatching and fully hatched blasts have similar rates of success, there are some studies that suggest that fully hatched could be more fragile. But it will still have a better chance of success than an embryo in the earlier stages of development.

I also had your experience, the embryo was frozen in a hatching state and must have been very active as it then hatched out fully when they thawed it. No luck in my case though, but I have recurrent implantation failure. Good luck with it

Thank you so much for your reply. She did mention it’s fragile and she used something different to transfer it (can’t remember what).

Sorry to hear yours didn’t work xx

Good luck, i've had two fully hatched blasts, 6BB and 6CA. No luck sadly, but that's no reflection on the embryo.

I was told the 'shell' only serves it's purpose up to blastocyst stage and that it's not at any greater risk once transferred, than a hatching blast. To be honest, everyone does seem to point to the hatching 5AA as the gold standard, but really it all comes down to whether the embryo is chromosomally normal and even a 3CC could be that, so try to not read too much into it, hatched is definitely a good sign of progression.