Assisted Zona Hatching (AZH)

Following conception, the blastocyst ‘hatches’ out of the tough shell surrounding it, called the zona pellucida.  This is necessary for it to attach to the uterine wall and begin to receive oxygen and other nutrients from the mother.  Sometimes, the blastocyst can’t hatch from the tough zona pellucida because it’s too tough, effectively disabling the embryo.

This procedure gives the blastocyst a helping hand, sort of.  In the IVF lab, the zona pellucida is either thinned out or a hole is put into it, allowing the blastocyst to do the rest on its own.  The embryo is then returned to the uterus.

AZH is applied during the 3rd step of in vitro Fertilization – which is the fertilization step. does not make treatment recommendations nor dispense medical advice; only a physician or heath care provider is qualified to determine the proper treatment for any patient.  The treatment options are presented for general education purposes only.

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