Embryos not Utilized in The existing cycle is usually cryopreserved. Cryopreservation is often achieved with vitrification, a speedy freezing procedure. Vitrification is believed to circumvent cryoinjury by decreasing the development of intracellular crystals.[35] All embryos can also be frozen in clients in danger for ovarian hyperstimulation syndrome (discussed additional in https://www.ivf.com.mx/