Gynaecology & Obstetrics Cervical cerclage is advised in an antenatal woman with a prior preterm bih if the cervical length measures A Not related to cervical length B Between 3-4 cm C Between 2.5 to 2.9 cm D < 2.5 cm 💡 Explanation Cervical cerclage is advised in an antenatal woman with a prior preterm bih if the cervical length measures ✓ Correct Answer: D. < 2.5 cm