The surrounding membrane of the transferred embryos naturally cracks or thins when they reach the blastocyst stage. This process is called hatching. When the membrane is breached, the blastocyst emerges from the zona pellucida and directly contacts the endometrial tissue, facilitating the implantation process. In some cases, this process may be difficult or fail to occur. Assisted Hatching refers to the procedure of thinning or fully breaching the outer membrane surrounding the embryo before the embryo transfer in IVF treatments. Creating a small opening in the zona pellucida facilitates natural hatching. The purpose of this procedure is to increase the chances of successful implantation. It is particularly necessary to perform this procedure on the outer membranes of frozen-thawed embryos.
Assisted Hatching procedure can be performed using various methods (mechanical, acid tyroide, or laser). At our center, Assisted Hatching is performed using laser. It is a reliable and practical technique.