IVF technology has been around for more than 40 years, from the first generation of IVF technology to the third generation of IVF technology. In fact, fourth-generation IVF technology has also been released, but it has not been applied in clinical practice. At present, the first, second and third generations of IVF technology are basically used in clinical practice. The third generation of in vitro fertilization technology solves the problem that people cannot have children for various reasons, realizes the dream of infertility patients to become parents, and enjoys the joy of family life. The following follow-up to Hengjian Overseas to understand the advantages and disadvantages of the third generation of test tubes.
Third generation IVF
The third generation of IVF technology, also known as pre-implantation genetic screening (PGS) or pre-implantation genetics (PGD), mainly targets the existence of single-gene genetic diseases, chromosomal diseases, etc. Preimplantation screening and techniques for addressing genetic disease issues.
"IVF" is commonly known in China as "third-generation IVF", which actually refers to preimplantation genetic testing (PGT). That is, embryos are genetically tested before implanted in the uterus, and then normal or non-pathogenic embryos are selected for transfer.
Advantages of third-generation IVF
Third-generation IVF technology can eliminate genetic defects and avoid genetic diseases. This allows infertile families to have healthy babies.
The third generation of "IVF" focuses on preimplantation inheritance. Just like the first and second generations of IVF, embryos are obtained from IVF. When the embryo develops into a small embryo with 4 - 8 cells, 1 - 2 cells (often referred to as mitosis globules in medicine) are removed under a microscope for genetic examination and their integrity is maintained. If it is determined that the embryo does not have a genetic disease, it is transferred into the human womb and allowed to continue to grow and develop.
Ability to increase the likelihood of pregnancy in older families. Because older mothers' chromosomes are prone to mutations, ovarian function also drops to very low levels, equivalent to natural pregnancy, but miscarriage. After two screening procedures, cyst culture and screening, older mothers, although they have fewer embryos, are less at risk if they become pregnant.
One-fifth to one-quarter of the population suffers from genetic diseases, with an average of 5 to 6 recessive genes per person. If genetic diseases can be detected before embryo transfer, the quality of the postpartum baby will be greatly improved.
Disadvantages of third-generation IVF
It must be said that IVF techniques carry lemma risks. For example, if the underground sperm bank is not standardized and the origin of the J-seed is unknown, the quality of the fetus may not be available. In addition, the cost of IVF is also considerable, and there may be some experiential stress for most families. Another disadvantage of IVF is that surgery involves surgery and involves the risk of infection, ma drunkenness and bleeding. Ovarian hyperstimulation syndrome (OHSS) is also a risk.
Many people do not consider multiple pregnancies to be a disadvantage to IVF. However, many couples are unaware of the severity of multiple pregnancies and the frequency of these complications.
The advantages and disadvantages of three generations of test tubes have been roughly mentioned above. It should be understood that there are two sides to everything, and while enjoying the convenience brought by advanced technology, we must also bear the risks brought about by it. Overall, the advantages of three-generation test tube technology outweigh the disadvantages, so couples who intend to do test tubes don't have to worry too much.