Embryo freezing
Embryo freezing is the process of storing embryos in liquid nitrogen at temperatures below zero degrees (-196 ° C). Hundreds of thousands of newborns have been born within this technique since the first human embryo was successfully thawed and survived from freeze in 1984.
Embryo freezing is a very common part of the IVF / ICSI process. Embryos are transferred 3 days after fertilization (;fresh transfer), and rest of them will freeze for future use. More than 95% of freeze embryos are well-survived from freeze. This process provides patients with a “back-up” that if the initial fresh embryo transfer didn’t result in a pregnancy, freeze embryo transfer can be performed at a much lower cost than starting IVF all over again and often with minimal medications.
