After more than 40 years of continuous efforts by researchers, in vitro fertilization has developed rapidly, and the technology of in vitro fertilization has been upgraded from the first generation to the third generation. These three generations of in vitro technology have their own professional fields, and many people have difficulties in choosing. In fact, patients can follow a principle when choosing IVF technology: choose the appropriate one, not the expensive one. Which generation of IVF is better? Now Bian Xiao will take you to understand.

Introduction to the third generation technology of in vitro fertilization

First generation IVF

The first generation IVF is mainly suitable for infertility patients caused by tubal obstruction and endometriosis. Take out the sperm and egg, and naturally combine them in vitro to fertilize the egg. After several days of cultivation, embryos are formed and transferred to the uterus, allowing women to conceive and have children.

Second generation IVF

The second generation IVF is mainly suitable for individuals with oligospermia or no enuresis, but with a small amount of sperm in the seminiferous tubules. Healthy sperm can be extracted through puncture and then subjected to in vitro fertilization, solving the problem of male infertility. The second generation of in vitro technology not only improves success rates, but also expands the scope of in vitro fertilization.

Unlike the first generation of in vitro technology, the first generation of in vitro technology involves naturally combining sperm and eggs in a culture dish, while the second generation of in vitro technology requires operation under a microscope, which involves injecting sperm into the cytoplasm of the egg to develop into an early embryo, which is then transferred to the human uterus to continue growing and developing until delivery.

Third generation IVF

The third generation IVF has added PGS/PGD technology for gene diagnosis and screening on the basis of the first two generations of IVF, which is currently a relatively safe generation. It can be used for genetic diagnosis and screening for chromosomal abnormalities and various genetic diseases before transplantation, which can greatly avoid fetal malformations. Choosing high-quality and healthy embryos for transplantation can lead to healthy embryos or twins.

The method is the same, which involves removing female eggs and male sperm from the body, combining them into fertilized eggs, cultivating them into embryos, and transplanting them into the female uterine cavity for implantation and pregnancy. But the difference is that the first and second generations cannot choose gender, while the third generation can perform genetic chromosome screening based on the needs of genetic disease patients, so men and women can be selected during in vitro transplantation. This is to avoid the occurrence of genetic diseases and is also a medically permissible gender selection.

In vitro fertilization (IVF) is a great achievement of modern science, which solves the long-standing problem of infertility for couples. Each generation of IVF technology will be suitable for different people. So different patients choose different IVF, there is no distinction between good and bad. We should "apply different IVF techniques to adapt to symptoms" to save money and trouble.