What is in vitro fertilization? IVF is a common term for in vitro fertilization-embryo transfer technology. It is not really a baby that grows up in a “test tube”, but rather a baby in which eggs are removed from the woman’s ovaries, combined with the man’s sperm in a laboratory to form an embryo, which is then transferred to the woman’s uterus for implantation and pregnancy. The current pregnancy rate for a cycle is between 40% and 50%. The approximate process of IVF The man and woman pass the medical examination, prepare the three documents (marriage certificate, ID card, certificate of not having children or second birth certificate) and then enter the IVF cycle treatment. The female partner undergoes ovulation treatment and HCG injection (commonly known as night injection) when the follicles are mature. The day of egg retrieval is set as day 0. Day 1 after egg retrieval Fertilization is checked and the presence of two primary nuclei is considered normal fertilization. Day 3 after egg retrieval Depending on the patient and the development of the embryos, the appropriate embryos are selected for transfer or frozen. The remaining embryos continue to be cultured as blastocysts. Day 5/6 after egg retrieval The blastocysts that are able to form are transferred or frozen. How is IVF different from a naturally conceived child? IVF, like natural pregnancy births, can have some pregnancy complications, including miscarriage, ectopic pregnancy, malformations, stillbirths, etc. There is a significant increase in the rate of multiple births with IVF and some increase in the rate of preterm births, which are mostly caused by multiple births.