The third generation of IVF technology is also known as “designer baby” technology. Although all three generations of IVF involve artificial insemination, unlike the first and second generations of IVF, “designer babies” are genetically screened from a large number of embryos and are a new state-of-the-art medical technology for the benefit of humanity in a broader field. During the third generation IVF operation, the doctor will extract the cells from the inner wall of the embryo for testing, which may affect the quality of the embryo, but the probability is very low, so please rest assured. In view of this, third generation IVF can be considered in cases with special medical indications. The relevant laws in China clearly stipulate that gender selection without medical indications is strictly prohibited, and that artificial gender selection can easily cause an imbalance in the sex ratio of the population. In reality, only a very small percentage of people need to undergo sex selection because of medical indications. The prevalence of some common genetic disorders has reached 30% of the population, but pre-transplantation diagnosis (PGD) is still very limited in screening for genetic pathogenic genes, and common polygenic disorders such as diabetes and hypertension cannot be identified. Among the sex-linked genetic disorders, there are some that do not seriously affect the lives of patients, such as red-green color blindness, that do not require selection by PGD. At present, the main diseases that are targeted by the “designer baby” technique are X-linked invisible genetic disorders such as hemophilia, and the gender target for selection is female. In reality, many patients who want to select gender through third-generation IVF are older or want to have a second child. At this time, the age of both husband and wife are mostly over the age of eugenics, then the problem arises, regardless of the first generation of IVF technology, there is a common point, the older the couple, the poorer the quality of embryos, the smaller the success rate of IVF. Many foreign IVF specialist hospitals require “blastocysts”, which is what we usually call blastocysts, for sex determination. Not all embryos can develop into blastocysts with better differentiation potential in an in vitro environment. In many cases, embryos can develop well in the uterine cavity, but will shatter when cultured in vitro. Therefore, in our country, IVF is not selective. Both boys and girls are beautiful and lovely little angels, making your life a more colorful experience.