Technically, gender selection has been achieved: pre-implantation genetic diagnosis Pre-implantation genetic diagnosis, or PGD, also known as “third generation IVF”, is used during the IVF treatment cycle to determine whether the embryo has genetic abnormalities. Genetic diagnosis can also be used to help identify the sex of the embryo. A healthy egg cell contains 46 chromosomes arranged in 23 pairs, but before the egg cell can be fertilized, it undergoes a meiosis in which each pair of chromosomes is split in two and the unwanted set of 23 chromosomes is expelled from the egg cell to form a structure called a polar body. The test involves taking one to several embryos from an in vitro fertilized embryo. Newborns have delicate skin and a vigorous metabolism. It can be bathed daily in summer and once every 2-3 days in winter. The water temperature should be 38-41 degrees Celsius, and special attention should be paid to the skin folds when bathing, using non-irritating cleaning solution or soap. When bathing in winter, pay attention to raise the room temperature to avoid the wind through the room. Use a soft towel to absorb and dry after bathing, do not wipe vigorously to avoid damaging the skin, and wear soft, absorbent cotton clothing after bathing. In 1990, the first case was reported in which a female embryo was selected for transfer to a pregnant woman after the application of pre-implantation genetic diagnosis to identify the sex of the embryo and analyze the embryo chromosomes for eugenic purposes. The procedure PGD is usually used when a woman’s eggs are collected and fertilized with a man’s sperm to form an embryo before it is transferred into the woman’s uterus in preparation for an in vitro pregnancy. When the embryo reaches the four to eight cell stage of development, one or two cells (called oogonia) are removed from the embryo using microsurgical techniques. The DNA in the cells is then analyzed to check for genetic disorders. If there are any abnormalities, the results of their tests are communicated to the patient. It is then up to the patient to decide which embryos will be transferred. The patient and his family discuss the possible results of the genetic diagnosis before it is performed, which gives them enough time to consider all the problems that will arise. There are other ways to diagnose chromosomal methods prenatally, such as amniocentesis or chorionic villus sampling (CVS) in which samples are taken from the pregnant mother’s body. If the diagnosis shows that the fetus has been affected, the couple needs to make a decision whether to terminate the pregnancy. Some couples may need to go through multiple attempts to have a healthy baby. PGD, on the other hand, is used to check early embryos (in the days before transfer) for genetic disorders. Couples can select those healthy embryos for transfer and be sure that the resulting baby is healthy. The advantage of genetic testing over CVS is that it gives patients the ability to know the health status of their embryos before they become pregnant and can make decisions in advance. 2. Not everyone can select gender indications through PGD Currently, preimplantation genetic diagnosis can diagnose diseases caused by single gene defects, such as hemophilia and thalassemia, which can be directly detected through such diagnosis; preimplantation genetic diagnosis is also suitable for screening aneuploidy in women over 35 years of age to address infertility or miscarriage in older women caused by genetic abnormalities in the embryo; for balanced It can also be used to select genetically balanced embryos for transfer in couples with translocations. This can fundamentally improve the success rate of first and second generation IVF pregnancies, reduce the rate of spontaneous abortions, and improve the quality of pregnancies, effectively avoiding the need to terminate pregnancies during pregnancy due to the blind transfer of embryos carrying abnormal genes. Each pregnancy has a 50% chance of being male and a 50% chance of being female. With the development of assisted reproductive technology, gender screening is technically possible, but it is restricted by law in our country and strict indications need to be met before PGD can be performed to select the sex of the offspring, thus reducing the incidence of genetic diseases. Do not blindly believe in the commercial gimmick of “guaranteed births, no refund” to avoid financial and emotional losses.