Transabdominal cervical length measurements are correlated with transvaginal measurements overall, and the transabdominal length is consistently shorter than the transvaginal length in cases with discrepancies. Transabdominal sonography could be used as a cervical length screening tool.

Rates of preterm birth have increased in recent years, and the focus is now on primary prevention. Both transvaginal (TV) sonography and transabdominal (TA) sonography are used to assess cervical length. Many factors, including the mother's physical condition and fetal position, influence the practical use of TA sonography. This retrospective study 126Obstetrical and Gynecological Survey