Grace Fertility

Risk of Twins When Transferring Two Embryos: What You Need to Know

twin babies

Authored & Verified by: 

Dr. Reubina Singh

Dr. Reubina Singh

MS (OB/GYN), MBBS - Senior Infertility Specialist

For hopeful parents pondering in vitro fertilization (IVF), if we transfer two embryos, will it raise the chances of pregnancy? It’s a natural question to ask and calls for gentle handling on the part of fertility specialists. In fact, most experts, including the best fertility doctors in Gurgaon at the best IVF clinics in Gurgaon, discourage implanting more than one embryo at once because of the substantial dangers involved because of the Risk of Twins with Two Embryos.

As embryos are artificially implanted in the uterus through in vitro fertilization (IVF), doctors are not able to determine how many will survive this process. And just one baby–especially say, two little boys or girls born in one family–is often enough for most would-be parents! The normal objection is made when clinics want their patients to carry a set of damned twins rather than just one tingle pair.

1. IVF vs. IUI: Understanding the Basics and Risks of Multiples

There is a widespread belief that IVF naturally results in more twin pregnancies. But that’s not necessarily the case. So, here’s how IUI (Intrauterine Insemination) and IVF compare in terms of twin risks:

IUI and the Risk of Twins

With IUI, we insert the sperm directly into your uterus, usually after you take medications (like Clomid or Letrozole) to help stimulate your ovaries. This yielding to the production of 2-3 eggs. With the less controlled process, there’s actually a 5-8% chance of twins, based on the woman’s age and her ovarian reserve.

IVF and Embryo Transfer

IVF provides more control. Doctors retrieve the eggs, fertilize them in a laboratory, and decide how many embryos to transfer back into the uterus. Only putting in one embryo greatly reduces the risk of having twins. Even then, if the embryo divides after transfer, there is still a 1 to 2 percent chance of identical twins.

2. Why Do Doctors Advise Against Transferring Two Embryos?

Fertility doctors place the health of the mother and baby first. The aim is invariably one healthy mother, one healthy child. Let’s look at why:

Risk of Twins with Two Embryos

Risk of twins increases to 50% when two embryos are transferred. Although that may sound appealing, multiple pregnancies pose major, serious risks:

  • For the Mother:
    • Higher risk of preeclampsia and gestational diabetes.
    • Increased risk of requiring a C-section.
    • Post-partum hemorrhage risk
  • For the Babies:
    • Preterm Birth: Twins are often born earlier, which can lead to complications like brain bleeds and lung development issues.
    • NICU Admissions: Preterm babies may require intensive care.
    • Twin-to-Twin Transfusion Syndrome (TTTS): A condition where one baby receives more blood than the other, causing growth issues.
    • Long-Term Disabilities: Depending on how early the babies are born, there could be lasting health challenges.

3. How IVF Reduces the Risk of Twins

But IVF also allows doctors to control how many embryos are selected and transferred, which dramatically decreases the chances of twins compared to IUI. Here’s how:

Single Embryo Transfer (SET)

Thanks to the advances in Preimplantation Genetic Testing (PGT), doctors are able to select genetically healthy embryos. This increases success rates — up to 60–70 percent — even with one embryo transfer.

Monitoring and Customization

Fertility experts design treatment protocols tailored to a patient’s age, ovarian reserve and BMI. They monitor follicle maturation and growth carefully to reduce the chances of more than one egg releasing during the ovulation stage.

4. The Role of Preimplantation Genetic Testing (PGT)

PGT is a game-changer in fertility treatment. It allows doctors to:

  • Improve overall success rates while keeping the risks of multiples low.
  • Screen embryos for genetic abnormalities.
  • Select the most viable embryo, increasing the chances of a healthy pregnancy with a single transfer.

5. Why One Embryo is Often the Best Choice

While it may seem tempting to transfer two embryos, the risks often outweigh the benefits. The goal is a healthy, full-term pregnancy. By transferring one embryo at a time, you reduce complications and increase the chances of delivering a healthy baby.

Conclusion

Choosing how many embryos to transfer is a critical decision in the IVF process. The best fertility doctors in Gurgaon and specialists at the best IVF clinics in Gurgaon recommend single embryo transfers to minimize the risks associated with twin pregnancies. Remember, the ultimate goal is a safe pregnancy and a healthy baby.

If you’re considering IVF or have questions about fertility treatments, consult with a trusted fertility clinic to discuss your options. Always prioritize your health and the well-being of your future baby.

Want to consult the best Fertility doctor in NCR? Please find the link below.-‍

Best Fertility doctor in Gurgaon

Best IVF Clinic in Gurgaon

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