This is actually not entirely true for eggs/embryos. If some cells from an embryo die at thaw, the remaining ones can often fill in for the dead ones and reform a complete embryo. Eggs on the other hand are single cells so if one dies it’s gone. Yes, you may have other eggs, but they are more fragile and less resistant to cryodamage due to their unicellular nature.
Aleuna t1_ixnt1cl wrote
Reply to comment by thephantom1492 in If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
This is actually not entirely true for eggs/embryos. If some cells from an embryo die at thaw, the remaining ones can often fill in for the dead ones and reform a complete embryo. Eggs on the other hand are single cells so if one dies it’s gone. Yes, you may have other eggs, but they are more fragile and less resistant to cryodamage due to their unicellular nature.