What is the difference between embryo and blastocyst transplantation

In in vitro fertilization, the two most common transplantation methods are embryo transplantation and blastocyst transplantation. Among them, blastocyst transplantation has the highest requirements for laboratory conditions. Only some reproductive centers with better conditions can perform this type of transplantation. For most hospitals, they can only perform ordinary embryo transplantation. The difference between the two is also quite large. Blastocyst transfer is closer to the rules of natural pregnancy. Therefore, its success rate will be relatively higher.

What is the difference between blastocyst transfer and normal embryo transfer?

The difference between blastocyst and ordinary embryo: Blastocyst is also a type of embryo. In the early embryonic stage, the fertilized egg forms an early embryo around the third day of development. It generally has about 6-8 divided cells, so it is called a cleavage-stage embryo. It continues to develop until the 5th-6th day, the number of embryonic cells increases, forming a fused blastocyst cavity. The embryo at this time is called a blastocyst-stage embryo. Most hospitals implant cleavage-stage embryos into the mother's uterus during the cleavage stage.

Comparison of the success rates of blastocyst transfer and conventional embryo transfer :

Because natural pregnancy is when the embryo develops to the blastocyst stage and enters the uterus, blastocyst transfer is closer to the rules of natural pregnancy and has a higher success rate. However, the success rate of blastocyst culture is slightly low. Blastocyst culture requires that the laboratory environment and culture medium environment are more closely similar to the maternal uterine environment. Therefore, the culture will fail if you are not careful. It is recommended that reproductive centers improve their medical conditions and equipment and strengthen the capabilities of their laboratory personnel. 》》Is the success rate of blastocyst transfer in IVF high?

The difference between blastocyst transfer and normal embryo transfer time :

Blastocyst transfer is performed around the 5th day after egg retrieval, and usually around the 3rd day after egg retrieval. Pregnancy can be tested about 14 days after normal embryo transfer, and two days in advance for blastocyst transfer.

The difference between blastocyst and ordinary embryo, the success rate of blastocyst transplantation and ordinary embryo, and the time of blastocyst and ordinary embryo transplantation are introduced in three points. I hope that everyone will have a more comprehensive understanding of embryo transplantation.