In twin pregnancies, a short cervical length on ultrasound, as well as a positive fetal fibronectin test, are both associated with an increased risk of preterm birth. In this study, we found that the presence of amniotic fluid sludge (particulate matter seen on ultrasound just above the cervix) also increased the risk of preterm birth.
Maternal Fetal Medicine blogs are intended for educational purposes only and do not replace certified professional care. Medical conditions vary and change frequently. Please ask your doctor any questions you may have regarding your condition to receive a proper diagnosis or risk analysis. Thank you!