Semen / Oocyte / Embryo Freezing (Vitrification).

Semen, oocyte (egg), and embryo freezing, also known as vitrification, are advanced techniques used in assisted reproductive technology (ART) to preserve reproductive cells and embryos for future use:

  1. Semen Freezing: Semen freezing involves preserving sperm samples through cryopreservation. It’s commonly used for men about to undergo medical treatments that may affect fertility, such as chemotherapy, or for those who want to preserve fertility due to lifestyle choices or upcoming surgeries.
  2. Oocyte (Egg) Freezing: Oocyte freezing allows women to preserve their eggs for future use. Eggs are retrieved through a process similar to IVF, then frozen using vitrification, which is a rapid freezing technique that prevents ice crystal formation, ensuring higher survival rates when thawed. This is beneficial for women who wish to postpone childbearing or for medical reasons.
  3. Embryo Freezing: Embryo freezing involves fertilizing eggs with sperm to create embryos, which are then frozen using vitrification. This technique is often used during IVF cycles when more embryos are created than needed for immediate transfer. Frozen embryos can be stored for later use in subsequent IVF cycles or for donation.

Vitrification is preferred for these freezing techniques due to its ability to rapidly cool reproductive cells and embryos without damaging their cellular structure, resulting in better survival rates and improved outcomes upon thawing for future use in fertility treatments.