IVF doctors used to wave their hands and say “sorry” for “blocked fallopian tubes”, and couples with this diagnosis had to give up. “IVF is like a magpie bridge for the Cowherd and the Weaving Maid, who are separated from each other, giving them a path to find a child in their desperation. Since 1978, when the world’s first case of IVF was introduced, the technology has been widely used and rapidly developed around the world in the past three decades. The first generation of IVF involved giving the wife ovulation drugs to mature multiple eggs in her ovaries, which are then punctured from the ovaries and placed in a “test tube” under the guidance of a vaginal ultrasound. The husband’s semen is then processed and placed in the same “test tube”. The sperm and egg are combined (fertilized) in the “test tube”, and the fertilized egg divides and develops into a small embryo in the “test tube” (usually the small embryo lives in the “test tube” for 48-120 hours). -120 hours). The embryo is returned to the uterine cavity at the right time through the catheter and given fetal preservation medication. After a certain period of time, the pregnancy is declared successful if the pregnancy is confirmed by blood test or ultrasound. This method can be used for obstructed fallopian tubes, endometriosis, oligospermia, immune infertility, ovulation disorders and unexplained infertility. Second generation IVF (intracytoplasmic single sperm injection) When the husband has too little sperm, too little sperm, too many deformed sperm, inactive sperm, or no sperm found in the semen, one of the best autologous or allogeneic sperm is injected directly into the egg cell under a microscope, fertilized and split into a small embryo and sent back to the body. Third generation “IVF” (pre-implantation genetic diagnosis) Before embryos are transferred into the uterine cavity, embryo biopsies are performed for chromosomal examination to eliminate embryos with genetic abnormalities, thus avoiding the birth of babies with genetic diseases. Embryo freezing Multiple embryos can be formed after a single superovulation and in vitro fertilization, and the remaining embryos after this transfer can be frozen and preserved for a second transfer. In vitro fertilization of eggs provided by another woman and implantation into the uterine cavity of an infertile woman. Egg donation is available for women with non-functioning ovaries, previous repeated in vitro fertilization failures, hypovulatory follicles or empty follicles, carriers of hereditary diseases, and recurrent miscarriages due to poor egg quality. The pregnancy rate of IVF is about 30-40%, and only those who dare to suffer failure are qualified to approach it. ”IVF can also result in miscarriage, premature birth, fetal abnormalities, and even embryos that are clearly placed in the uterus may from time to time become ectopic in the fallopian tubes, so the live birth rate is only about 20%. The use of a large number of ovulation stimulation drugs sometimes leads to ovarian hyperstimulation syndrome, which is characterized by enlarged ovaries, chest and ascites, electrolyte disorders, blood concentration and oliguria, and can be life-threatening in severe cases. The cost of IVF is 30,000-50,000 RMB, which is not a small amount, so it is recommended to do it within your means. Don’t consider IVF as a shortcut or a straight path to pregnancy, it should be the last resort for infertile couples after a hundred battles.