Cryopreservation

Everything you should know about cryopreservation

Cryopreservation, also known as egg, sperm or embryo freezing, is a procedure used in in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) to allow for later use. The procedure allows women to have their eggs retrieved at a time when pregnancy is not planned for use later in life. It is also an option for patients who are undergoing cancer therapy or other medical treatments that may affect their ability to reproduce.

During IVF or ICSI treatment, more eggs than needed are retrieved and fertilized in the laboratory. The embryos are then incubated in an incubator to allow for their development. Excess embryos can be prepared for cryopreservation by freezing them with liquid nitrogen at a temperature of -196 °C. If pregnancy is desired, the frozen embryos can be thawed and transferred to the woman's uterus.

Cryopreservation can also be used for sperm preservation. It is an option for men who develop infertility due to cancer treatment or other medical treatment that affects sperm production. Freezing sperm allows it to be stored for later use if a pregnancy is planned.

Cryopreservation is a safe and effective method of fertility preservation and is used by many couples to increase their chances of pregnancy. However, it is important to note that freezing eggs, sperm or embryos does not guarantee pregnancy and there is still no 100% guarantee of success. It is important that couples talk to their doctor about their options and have a thorough evaluation to find the best option for their individual needs.