Assisted hatching (AHA) is a procedure which consists of performing a small hole in the zona pellucida (ZP) (membrane surrounding the plasma membrane of the embryo). Its aim is to enable the inner cell mass (ICM) of the embryo to break through the ZP.
Assisted hatching procedure
By Laura Garrido BSc, MSc (embryologist), Patricia Recuerda Tomás BSc, MSc (embryologist) and Sandra Fernández BA, MA (fertility counselor).
Last Update: 12/04/2018