The embryo is protected by a thin and soft layer in the first days of development. This protective barrier spontaneously bursts after several days so that the embryo can develop and nest in the uterus.
Assisted hatching is a microscopic technique that facilitates the breakage of the embryo's protective membrane after insertion into the uterus. We cut the embryo membrane with a very fine, sharp needle or laser just before transfer to the uterus.
This technique increases the chances of getting pregnant in case of abnormalities of the embryo membrane (so-called pellucid zones), but the pregnancy cannot be 100% guaranteed.
The assisted hatching method is used especially in cases of repeated IVF cycles when we use thawed embryos.