Twin Pregnancy: Answers by Fetal Care Expert

September 19, 2022

Twin pregnancy
Twin pregnancy

How is a twin pregnancy different from a single fetus pregnancy?

The treatment for twins is very different from that of single fetuses. All twins have an increased chance of miscarriage, premature birth, and stillbirth, and the increased likelihood of maternal problems like anemia, high blood pressure, and heavy bleeding after delivery.


During pregnancy, twins are classified as “single placenta twins” or “double placenta twins” based on how many placentas are present. This is a critical categorization: single placenta twins have special monitoring. In most ‘double placenta twins’ (di chorionic twins), there won’t be any untoward complications, and we can safely monitor the pregnancy once in 4 weeks.

However, in ‘single placenta twins’ (monochorionic twins), there is a 15% chance of some unique issues called ‘selective fetal growth restriction, ‘twin to twin transfusion syndrome, and ‘twin anemia polycythemia sequence. These unique problems are due to the sharing of blood between the two fetuses through the single placenta. Timely identification of any such issues is important to intervene at the appropriate time and optimize the outcome.

What is Twin Surveillance under Fetal Scans?

The twin’s monitoring protocol followed at FETOSCAN is at par with the best of fetal medicine centers. All monochorionic twins are meticulously examined for size, liquor, and Doppler differences at each visit, every two weeks. Dichorionic twins are monitored for growth issues every four weeks.

It is important to know that categorizing twins into mono or di chorionic pregnancies is most accurate at the first-trimester screening scan rather than late in pregnancy. Therefore, if your twin pregnancy has not been classified as either mono or di chorionic after the FTS scan, you must discuss this with your physician.

Fetal scans can help you evaluate your baby’s growth and development. At Fetoscan, we can match the technology with advanced diagnostic analysis to monitor your pregnancy. The technology is safe for both you and your baby.

Book your appointment here: 

Book Appointment