What is the primary purpose of assisted hatching?

What is the primary purpose of assisted hatching?

• A. To thin or perforate the zona pellucida to aid embryo hatch
• B. To fertilize the oocyte
• C. To freeze embryos
• D. To culture embryos longer

Answer: (A)

Assisted hatching is used to help the embryo break out of its protective shell, the zona pellucida, by thinning it or creating a small opening. This makes it easier for the embryo to hatch and implant into the uterine lining, which can improve the chances of successful implantation in certain situations, such as when the zona is thick or after thawing frozen embryos or in older patients. The other actions described—fertilizing the oocyte, freezing embryos, or simply culturing embryos longer—are different steps or goals in the IVF process and do not involve helping the embryo hatch from the zona pellucida.

Assisted hatching is used to help the embryo break out of its protective shell, the zona pellucida, by thinning it or creating a small opening. This makes it easier for the embryo to hatch and implant into the uterine lining, which can improve the chances of successful implantation in certain situations, such as when the zona is thick or after thawing frozen embryos or in older patients. The other actions described—fertilizing the oocyte, freezing embryos, or simply culturing embryos longer—are different steps or goals in the IVF process and do not involve helping the embryo hatch from the zona pellucida.