The increase in the use of oocyte cryopreservation occurred after the introduction of the vitrification technique and the birth of the first baby with this method in 1999. Using this powerful tool, scientists have helped women to cryopreserve their gametes by oocyte or ovarian cortex vitrification. For a decade, important advances in vitrification technology have improved clinical efficiency and results. This progress has reduced the dependence on the operator skill and has increased the success rate to high and homogeneous levels. As a result, vitrification has become reliable and the current trend shows a definite increase in its use compared to slow freezing. The new and advanced method known as “Cryotech method” ensures achievement of 100% viability in oocytes and embryos at any stage. The technique is set to make definite changes in the procedure of cryopreservation in the whole...