The cryopreservation procedure allows the freezing of eggs, sperm, or embryos for future use. Generally, in IVF, three types of cryopreservation techniques are followed.

(i) Oocyte cryopreservation or Egg Freezing-

Oocyte cryopreservation allows you to use frozen eggs at any desired time later in the future. When you feel ready for pregnancy, you can use these preserved eggs to ensure a healthier pregnancy. This reduces your concerns about chromosomal abnormalities, which otherwise increase with age, especially when you are 35 or older. Frozen oocytes can be thawed and then combined with sperm in the clinical lab.

(ii) Sperm Cryopreservation-

It is a process of storing sperms for future use. It helps men to preserve their fertility who are about to have a treatment that can cause fertility issues such as cancer therapy, or prostate or testicular surgery. You can also opt for sperm freezing if you are at risk of exposure to chemicals or radiation. This procedure is also used in sperm banking.

(iii) Embryo Cryopreservation-

In IVF, embryo cryopreservation is an excellent option for preserving fertility for future use. Many times the extra embryos from an IVF cycle are kept frozen for future use. Embryo cryopreservation provides you with another chance to get pregnant if IVF fails the first time. You will not have to go through the whole IVF procedure again.