Embryos not Employed in the current cycle is often cryopreserved. Cryopreservation is typically attained with vitrification, a swift freezing method. Vitrification is thought to circumvent cryoinjury by lowering the event of intracellular crystals.[35] All embryos can be frozen in clients in danger for ovarian hyperstimulation syndrome (talked about further in https://www.ivf.com.mx/