We’ve had many inquiries in the clinic: “Doctor, we want to do IVF, can you help us to have a baby with a dragon and a phoenix?” “Doctor, my family has a sister, can we have a brother through IVF?” What’s more, young couples with normal fertility also join such a team. Can the development of assisted reproduction technology meet the needs of such couples? The purpose of sex selection is varied in clinical life, for medical and non-medical reasons, including cultural, religious, psychological and economic factors, as well as the patriarchal beliefs of many feudal cultures. Ancient legends contain many ways to achieve such purposes that seem ridiculous to modern eyes, but reflect the fact that such needs have existed since ancient times. The ancient Greeks believed that the sperm that determines male gender is produced by the right testicle, so they advocated that men lying on their right side can give birth to sons; by the 18th century in France, there was a very popular rumor that if you want to have a son, the man needs to tie the left testicle during sex, you can make up the scene at this point, and there is even a considerable number of people believe that men wearing boots to bed can get a son. There are also rumors that women who want daughters should eat sweets, while those who want sons eat sour foods. The ancient Egyptians believed that women with dark complexions were destined to give birth to girls, while in Jewish legend, the man who ejaculates first is most likely to conceive a girl, while the woman who spills secretions first has a high probability of conceiving a boy; in China, some Taoist alchemists suggest that seekers of sons have a high probability of conceiving a boy after drinking lion’s blood for sex during the full moon, and in the Chinese yellow calendar, there is even a date query for the birth of a child, believing that the sex of the fetus is The original purpose of prenatal ultrasound technology was to save the fetus and ensure its health, but it is estimated that millions of female fetuses were forcibly aborted in Asia during the two decades between 1980 and 2000, and human beings did something so foolish, challenging ethics and ignoring the law in order to be so paranoid. Our laws explicitly prohibit gender selection for non-medical reasons, and ethically, every life deserves our respect! Humans have evolved from ancient apes to now has a history of several million years, such a long time many species can not adapt to environmental changes have been on the verge of extinction, while humans continue to reproduce eventually became the master of the Earth, Darwin’s theory of evolution tells us that the human intelligence and wisdom has not yet fully deciphered the code of life, respect for life, the natural selection of things! Of course, for some X chromosome chain diseases, such as hemophilia, Kallmann syndrome, albinism-deafness syndrome, etc., the third generation IVF pre-implantation genetic diagnosis (PGD) technology in assisted reproductive technology can obtain healthy offspring for the affected couples through gender selection. Let’s fear life and respect it!