Some couples hope for twins after IVF, while others worry about them. Twins are more common after IVF than after natural conception, mainly when more than one embryo is transferred. Understanding the risks helps you make an informed choice.
Can IVF result in twins?
Yes. If two embryos are transferred and both implant, the result is non-identical twins. Occasionally, a single embryo splits to form identical twins. Twins are much less common when only one embryo is transferred.
What affects the chance of twins?
- Number of embryos transferred: the main factor
- Age: younger women’s embryos are more likely to implant, so transferring two carries a higher twin risk
- Embryo stage: blastocysts implant more readily than earlier embryos. See blastocyst transfer
- Ovulation induction and IUI: stimulating several follicles can also lead to twins or more
Risks of a twin pregnancy
For the mother:
- Higher risk of pre-eclampsia, gestational diabetes and anaemia
- More likely to need a caesarean section
For the babies:
- Much higher risk of premature birth and low birth weight
- Higher chance of needing neonatal intensive care
Why single embryo transfer is often advised
Transferring one good-quality embryo, and freezing any others for later, gives a good chance of pregnancy while greatly reducing the risks of twins. Many couples have two children from one IVF cycle by using a frozen embryo later.
Making the decision
The number of embryos to transfer should be decided with your doctor, taking into account your age, embryo quality, previous attempts and health. Indian regulations also guide how many embryos can be transferred. Read the embryo transfer process.
Frequently asked questions
Can I ask for two embryos to be transferred?
You can discuss it with your doctor, who will explain the risks and whether it is appropriate for your age and embryo quality.
Are IVF twins identical?
Usually not. Most IVF twins come from two embryos and are non-identical. Identical twins are less common.
Is a twin pregnancy high risk?
Yes. Twin pregnancies carry higher risks for both mother and babies and need closer monitoring.
If you have questions about your own situation, you can meet our doctors at our Basavanagudi, Koramangala and Ballari centres, or contact us to book an appointment.
This article is for general information and does not replace medical advice. Treatment decisions should be made with a qualified doctor who knows your history.