Among the different types of twins are the dichorionic diamniotic twins, often abbreviated as di/di twins. These types of twins can be identical or fraternal and are considered the most common type of multiple births.
This article will explore dichorionic diamniotic twin pregnancy, what makes it unique, and how to determine if you are expecting didi twins.
What Do Di/Di Twins Mean?
Dichorionic diamniotic twins have a personal chorion (outer membrane) and amnion (inner membrane). This setup provides each baby with its own placenta and amniotic sac, offering individual support systems.
Di/di twins occur in both identical and fraternal twin pregnancies:
- Fraternal twins: These are the most common form of di/di twins. They result from two separate eggs being fertilised by two different sperm, each forming its sac and placenta.
- Identical twins: If a fertilised egg splits very early—within the first three days after conception—these twins can also develop as a di/di pregnancy. In this case, they share the same genetic makeup but still have separate support structures.
The separate placentas and amniotic sacs make dichorionic diamniotic twin pregnancies the safest type of twin gestation. The separation reduces the risks of complications like twin-to-twin transfusion syndrome (TTTS), where one baby receives more blood than the other.
How Can You Tell if You Have a Di/Di Pregnancy?
Identifying a dichorionic diamniotic twin pregnancy typically involves early ultrasound imaging. The following signs may confirm a di/di pregnancy:
- Twin Gestational Sacs: During the first trimester, a transvaginal ultrasound can reveal two distinct gestational sacs.
- Separate Placentas: An ultrasound later in pregnancy might also show two individual placentas.
- Twin Peak Sign: A triangular tissue projection between the membranes (visible on ultrasound) is another clue of di/di twins.
Early prenatal care is essential for accurately determining the type of twin pregnancy. Proper diagnosis allows healthcare providers to monitor for specific risks and tailor care accordingly.
Conclusion
Dichorionic diamniotic twins, or didi twins, are a fascinating and relatively safe type of twin pregnancy. Whether identical or fraternal, understanding a dichorionic diamniotic twin pregnancy ensures that parents-to-be are well-informed about their unique journey ahead.
If you suspect or know you’re carrying didi twins, trust your healthcare provider to guide you through this exciting experience. Given the additional medical care and monitoring required during a twin pregnancy, having a reliable mediclaim policy can provide essential financial support.
Disclaimer: The information provided in this blog is for educational and informational purposes only. It is not intended as a substitute for professional advice, diagnosis, or treatment. Please consult your general physician or another certified medical professional for any questions regarding a medical condition. Relying on any information provided in this blog is solely at your own risk, and ICICI Lombard is not responsible for any effects or consequences resulting from the use of the information shared.