Symptoms of TTTS

(Please refer to Dr. Ruben Quintero's office, or your treating physician's office, for specific, detailed information.)

Any pregnancy can include identical twins, as they are the result of the spontaneous splitting of a fertilized egg into two separate embryos. The occurrence of identical twins is not hereditary, so you can have them even if no one in your family has ever had twins. An ultrasound can confirm the presence (or absence) of twins, as well as the presence of TTTS.  If you have not yet had an ultrasound (perhaps you do not even know if you are having twins), here are some outward signs that could indicate TTTS:

Even if you do not show any of these symptoms, the TTTS Foundation recommends that all women who are pregnant with twins have a Level III ultrasound, conducted by a perinatologist, at 16 weeks gestation. Although TTTS only affects monochorionic (one placenta) identical twin pregnancies, many times it is not clear whether there is one placenta or two without the fancy ultrasound. The following are symptoms of TTTS that would show up at a Level III ultrasound: