Cryopreservation is a process where gametes, embryos, blastocysts, ovarian tissue, or testicular tissue are preserved at sub-zero temperatures for future use, ensuring their viability over extended periods. This technique is widely used in IVF to improve cumulative success rates, reduce overall treatment costs, and allow flexibility in family planning. Embryo cryopreservation and embryo vitrification are key methods, with vitrification offering rapid freezing that preserves cell integrity and enhances survival during thawing. Fertility specialists may recommend cryopreservation in IVF for egg or sperm storage, donation procedures, or subsequent embryo transfers. Understanding cryopreservation techniques, cryopreservation temperature, and proper handling is crucial for successful implantation and IVF outcomes.