Twin Babies in IVF: what are the risks?

For couples facing infertility, assisted reproductive technology represents a real hope of conceiving, by giving birth to a child or several, sometimes even several at the same time! What are the risks of Twin Babies in IVF? If the risk of twin births seems to be increased by In Vitro Fertilization, is it possible to avoid multiple pregnancies or twin babies in IVF? This Infertility Guide will help you get in-depth knowledge about IVF and the probability of twin pregnancy which comes with it.

Chances of Twins Pregnancy with IVF: Risks of multiple pregnancies: 

The chances of Twins Pregnancy with IVF directly depend on the number of embryos transferred to the uterus. These are mainly twin pregnancies which represent 17% of pregnancies after IVF or ICSI and more rarely triplet pregnancies (0.3%).

Twin Babies in IVF: Embryo transfer: 1 or 2?

1 or 2: Let’s weigh the pros and cons:

We must weigh the pros and cons of transferring 2 embryos to increase the chances of pregnancy with 1 single embryo to reduce the risk of twin pregnancy in IVF. Each case is specific and the decision is taken collectively between the doctor, the biologist and the couple according to the clinical context of the couple and the experience of the fertility clinic.

1 Embryo only but at the Blastocyst stage:

Most often it is proposed to transfer 1 embryo at the blastocyst stage (5 days), whose implantation rate is close to that of 2 embryos of 2 days with 4 cells. The reason being, waiting for the 5th day for transfer helps in the selection of embryos with a higher implantation potential than 2-day embryos. About 55 to 60% of 2-day embryos become blocked before reaching the blastocyst stage, and therefore cannot give birth.

IVF Twins: IVF pregnancy and "false twins":

IVF and ICSI were responsible for a twin pregnancy rate around 20% of pregnancies obtained because the transfer policy has long been to transfer 2 to 3 embryos to optimize the chances of pregnancy until 2010.

The act of double fertilization and therefore of twin pregnancy by IVF is called false twins.

IVF Twins: Chances of Twins with IVF-

How to limit the Chances of Twins with IVF?

Since 2010, with technical progress, in particular, that of the prolonged culture of the embryo up to the blastocyst stage, the implantation rate per embryo has progressed to approach 30% per embryo. This progress allows us to transfer a single embryo, without reducing the pregnancy rate.

IVF and Twins: Beware of the duplication of embryos!

The risk of multiple or twin pregnancy with IVF can, therefore, be very easily controlled by the number of embryos transferred. However, this risk of giving birth to twins at the end of IVF is not completely excluded because 1 transferred embryo can split and give a twin pregnancy too: it is the real twin because they come from the same fertilization. This is unpredictable and unstoppable but very rare. So stay on the idea that the risk of multiple or twin pregnancy with IVF is controlled by the number of embryos transferred and that you will always have a choice in the selection of the number of embryos to be transferred.

To know more about Twin Babies in IVF, multiple pregnancies with IVF or any other IVF related query, visit the best IVF specialist in India and get the right solution.