When Is Gender Decided? What American IVF-PGT Reveals

2024-07-22 20:18:23，visits： 354

For expectant mothers, one of the primary concerns during pregnancy is the gender of the fetus. Many people imagine the baby in their womb aligning with their desired gender. Today, let's discuss some basic knowledge about fetal gender.

The gender of the fetus is determined at the very moment when the egg and sperm combine. Female eggs contain only X chromosomes, while male sperm contain both X and Y chromosomes. There are two possibilities at fertilization: when the X chromosome from the male sperm combines with the X chromosome from the female egg, the result is XX chromosomes, which means a girl; when the Y chromosome from the male sperm combines with the X chromosome from the female egg, the result is XY chromosomes, which means a boy. Therefore, the gender of the fetus is determined by the Y chromosome from the male.

During embryonic development, sexual characteristics gradually form. After fertilization, the embryo develops in the uterus, and typically around 8-10 weeks of development, male fetuses begin to secrete androgens, leading to the development of male external genitalia. In the absence of androgens, the embryo develops into ovaries, and the external genitalia develop towards the female direction.

The chances of having a boy or a girl are equal, as the likelihood of the fetus receiving either X or Y chromosome from the father is the same. Generally, a woman can determine the fetus's gender through ultrasound around 4 months of pregnancy, but this method is not entirely reliable, as the fetus's position might obscure the gender. Additionally, amniocentesis and chorionic villus sampling can also determine fetal gender, but these methods carry risks and are not recommended solely for gender determination.

With rapid social development, infertility and advanced maternal age are becoming more prevalent, highlighting issues with reproductive quality. The IVF-PGT technology is increasingly entering families with fertility needs. IVF-PGT technology greatly reduces the risk of miscarriage and fetal loss through embryo genetic screening and eliminates the risks of genetic diseases and chromosomal abnormalities.

In the USA, reproductive centers almost universally perform embryo freezing, chromosomal and major genetic disease screening (PGS), resulting in higher success rates for embryo transfer. Dr. Nathan Zhang particularly highlights the American IVF-PGT technology, which was first successfully completed by Dr. Grifo in 1992, marking a new chapter in IVF-PGT technology.

Currently, IVF USA provides services such as egg freezing in the USA, IVF in the USA, and third-party reproductive assistance. The business has expanded to include IVF and egg freezing in Japan, IVF and egg freezing in Thailand, as well as regions like Mexico, Taiwan, and Hong Kong. IVF USA works closely with top IVF doctors globally. Finally, we wish every woman aspiring to conceive a child the best in achieving a healthy baby!