IVF with Frozen Eggs

The frozen eggs are thawed and fertilized with sperm via a process called ICSI (add link her to this procedure in treatments). ICSI is strongly recommended after egg freezing since studies have shown hardening of the zona pellucida (the outer layer of the egg) after the egg freezing process. 

Due to this hardening, ICSI improves fertilization drastically.  After fertilization, the embryos are cultured for approximately 3-5 days. At this point the embryos are transferred in the standard IVF procedure.

An important difference between a transfer using frozen eggs or fresh eggs is that the frozen eggs are immediately available. The timeline to have eggs ready for use is between 2-3 months shorter than if you were using fresh eggs during IVF.

Egg freezing when working with donor egg treatment cycles results in quicker, more reliable cycles.

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