A short cervix can trigger early labor as the baby grows. Generally, “short” is defined as less than 2.5 centimeters long. Your doctor can usually see this during ultrasound.
A short cervix
- The American College of Obstetricians and Gynecologists. Practice Bulletin #130: Prediction and prevention of preterm birth. October 2012.
- SG Gabbe et al. Obstetrics: Normal and problem pregnancies. 5th ed.
- The American College of Obstetricians and Gynecologsits. Patient FAQ#87: Preterm (premature) labor and birth. September 2015.