Why Blastocyst Transfer for Healthy Pregnancy

Shukan Hospital and IVF Center   >>   Why Blastocyst Transfer for Healthy Pregnancy


Blastocyst embryo transfer is a technique used in assisted reproductive technologies (ART), The method of transferring embryos during in vitro fertilization (IVF) plays a crucial role in the success of the procedure. One approach that has gained popularity and shown promising results is blastocyst transfer. blastocyst transfer involves transferring embryos at a more advanced stage of development, usually around day 5 or 6.

In this blog, we will explore the reasons behind the increasing preference for blastocyst transfer and its advantages for fertility treatments.

Understanding Blastocyst Transfer:

To Understand the significance of blastocyst transfer, let’s first look into what is blastocyst?

A blastocyst is an advanced stage embryo that typically forms around day 5 or 6 of embryonic development. It is characterized by a fluid-filled cavity and consists of two distinct cell types – the inner cell mass, which will develop into the fetus, and the trophectoderm, which will give rise to the placenta.

what is blastocyst

Advantages of Blastocyst Transfer:

1.Improved Selection Process:

Blastocyst development allows for a more natural selection process. Embryos that reach the blastocyst stage are more likely to be chromosomally normal and have a higher chance of implantation. This can result in a more successful pregnancy outcome.

2.Enhanced Embryo Viability:

In natural reproduction, not all embryos progress to the blastocyst stage. The ability to reach this stage is an indicator of the embryo’s health and developmental potential. The extended culture period to the blastocyst stage provides the embryologist with more time to observe and evaluate the embryos. Thisextended monitoring helps identify the embryos with the greatest developmental potential, increasing the chances of selecting the healthiest embryos for transfer.

3.Increased Implantation Rates:

Studies have shown that blastocyst transfer is associated with higher implantation rates compared to transferring embryos at earlier stages. The blastocyst has undergone additional development, making it more adept at implanting into the uterine lining and establishing a pregnancy.

4.Reduced Risk of Multiple Pregnancies:

Blastocyst transfer allows for the transfer of fewer embryos while maintaining or even improving the chances of success. This can lead to a lower risk of multiple pregnancies, which is associated with potential complications for both the mother and the babies.

Selective Single Embryo Transfer (sSET): With blastocyst transfer, there is often a greater ability to select the most viable embryo for transfer. This allows for the practice of elective single embryo transfer (eSET), where only one high-quality blastocyst is transferred to the uterus. By limiting the number of embryos transferred, the risk of multiple pregnancies, particularly twins or higher-order multiples, is significantly reduced.

Reduced Need for Multiple Embryo Transfers: With earlier-stage embryo transfers, it is common to transfer multiple embryos to increase the chances of successful implantation. However, this practice contributes to the higher incidence of multiple pregnancies. With blastocyst transfer and improved embryo selection, a single high-quality embryo can be chosen for transfer, reducing the need for multiple embryo transfers.

While blastocyst transfer is associated with a reduced risk of multiple pregnancies, the decision to transfer one or more embryos is ultimately determined based on various factors, including the patient’s age, the number and quality of embryos available, and the specific circumstances of the IVF cycle. It’s crucial for healthcare providers to discuss the potential risks and benefits with patients and make decisions based on in dividualized treatment plans.

It’s important to note that the goal of many fertility clinics is to achieve a healthy, singleton pregnancy to minimize the risks associated with multiple pregnancies for both the mother and the babies. The choice of the number of embryos to transfer is often a collaborative decision between the patient and the fertility specialist.

5.Enhanced Synchronization with the Uterine Environment:

By allowing the embryos to develop for a longer period in the laboratory, blastocyst transfer enables better synchronization between the embryo’s developmental stage and the uterine environment. This 1 synchronization is crucial for successful implantation and pregnancy progression.

6.Higher Live Birth Rates:

Numerous clinical studies have demonstrated that blastocyst transfer is associated with higher live birth rates compared to earlier stage embryo transfers. The increased success rates contribute to the growing preference for this method among fertility specialists and patients alike.


In simple terms, we suggest that transferring (Blastocyst) embryos at a more advanced stage called the blastocyst stage is just as effective, At Shukan Hospital and IVF Center we are Waiting until day 5 (Blastocyst) to transfer embryos allowing for better selection of the healthiest ones

A major development in assisted reproductive technology, blastocyst transfer has a number of benefits over conventional embryo transfer techniques. Blastocyst transfer is an appealing option for those undergoing fertility treatments because of its better selection procedure, increased viability, higher implantation rates, less risk of multiple pregnancies, better synchronization with the uterine environment, and higher live birth rates. This method will probably stay a mainstay for folks who are having trouble getting pregnant naturally as long as research on it keeps improving and optimizing it.

Talking to our fertility specialist at Shukan Hospital and IVF Center about your worries over the optimal embryo transfer approach for your particular circumstances is advised if you are undergoing fertility treatments. Based on the details of your IVF cycle and your medical history, Shukan Hospital and IVF Center can offer tailored advice.