Speaking of "sac" and blastocyst transplantation, I believe that friends who know something about test tube technology should not be unfamiliar.
And in the eyes of many people, this transplant method often represents a higher chance of conception and better quality of pregnancy.
Therefore, it also makes many families with fertility difficulties seek "sacs" and hope to carry out IVF with the help of blastocyst transplantation
So, what is blastocyst transfer? Is it the highest fertility success rate?
There are two main types of embryos used for IVF, one is a blastocyst that is cultured for 3 days, and the other is a blastocyst that is cultured for 5 days.
Embryos at the embryos at the embryos of the cleft stage are relatively short in culture, and although a larger number of embryos can be obtained, the degree of selection is very limited.
Therefore, it is impossible to accurately reflect the vitality of the embryo and the quality of the development potential.
Coupled with the fact that the degree of development of embryos in the cleft stage is not synchronized with the development of the endometrium, it is naturally difficult to achieve the best transfer state.
But the case of blastocyst transfer is different!
After 5 days of culture, embryos with low development potential and poor quality will be eliminated and self-selection will be further realized.
Therefore, the blastocysts that can be used for transplantation also have the advantages of high quality and good potential.
In addition, the degree of blastocyst development and the degree of endometrial development will be more synchronized, and naturally the conception rate will be more secure.
However, the essence of "raising a sac" is actually the process of "survival of the fittest"!
During the breeding process, only embryos with good enough quality and high enough development potential can be cultured into blastocysts. Otherwise, there is only the fate of stopping development and being abandoned and eliminated.
Liu Hui, a fertility expert at Beijing Jiayuan Hospital, has made it clear that because the process of blastocyst transfer is more in line with the normal physiological state of the human body, the tolerance of the endometrium to the embryo is also the best, so relatively speaking, the implantation rate of blastocyst transfer will be higher. But not everyone is suitable for blastocyst transfer, "sac" is essentially a phase-out process, the purpose is to optimize better embryos, if the number of embryos is large, good quality, naturally suitable for sac. However, for people with a small number of embryos, it may not be suitable for "raising a sac", because it is not possible to raise embryos on the fifth and sixth days to stop developing and raising, so in order to ensure the opportunity of transfer, it will generally be cultivated until the third day for transplantation.
It can be seen that everything has two sides, and the success rate alone is that the blastocyst transplantation may be the highest.
But it is precisely because the "sac" has almost "harsh" requirements for embryos, which also makes this transfer method unable to be applied to everyone.
"Raising a sac" is a double-edged sword. If you use it well, it will be the biggest help on your fertility road; if it is not used well, it can also become a resistance on your fertility road.
Therefore, for the IVF family, the best does not mean that it is the most suitable for themselves, combined with their own situation, listening to the doctor's advice, is the best choice for fertility.
Fertility is not easy, and it is good and cherished. I wish you all the best of luck with the test tubes and a good pregnancy.