08/19/2026
EXPECTING TWINS? HERE’S WHAT YOU SHOULD KNOW ABOUT TTTS.
Twin-to-Twin Transfusion Syndrome, or TTTS, can occur when twins share one placenta and blood moves unevenly between them. One baby becomes the donor and the other becomes the recipient. This is not caused by anything the mother did.
Because TTTS is usually found through ultrasound, close monitoring matters. For twins who share a placenta, ultrasound surveillance generally begins at 16 weeks and continues at least every two weeks, with more frequent monitoring when there is a concern.
During each visit, I evaluate the fluid around both babies, bladder visibility, growth, heart function and Doppler blood flow. If TTTS is diagnosed, the stage and gestational age help guide the next step. When fetal laser treatment may be needed, I coordinate care with a specialized fetal treatment center and continue supporting the pregnancy before and after referral.
TTTS is serious, but it is not hopeless. Early detection helps keep more options available.
Ask your provider:
• Do my twins share one placenta?
• When is my next ultrasound?
• Do I need maternal-fetal medicine monitoring?
📍 Signature Perinatal Center | Fort Lauderdale, Florida
📞 954-603-3933
This post is for education and does not replace individualized medical advice.