Embryos not Utilized in the current cycle can be cryopreserved. Cryopreservation is often reached with vitrification, a rapid freezing course of action. Vitrification is assumed to circumvent cryoinjury by decreasing the event of intracellular crystals.[35] All embryos will also be frozen in patients at risk for ovarian hyperstimulation syndrome (reviewed https://www.ivf.com.mx/