Assisted zona hatching

Assisted zona hatching (AZH) is a procedure of assisted reproductive technology ,mainly used in IVF, in which a small hole is made in the zona pellucida. It can be done using different methods including mechanical, chemical or by the use of lasers, thereby facilitating zona hatching. Zona hatching is where the blastocyst gets rid of the surrounding zona pellucida to be able to implant in the uterus.