Cervical length
Cervical length refers to the measurement of your cervix taken via transvaginal ultrasound, usually between 18 and 24 weeks of pregnancy. A longer cervix generally indicates a lower risk of early labor. A typical measurement in mid-pregnancy is around 35 to 48 mm. Your doctor may recommend this scan if you have had a previous preterm birth, a prior cone biopsy, or are carrying twins. The result is always interpreted alongside your full clinical history, because a single number does not tell the whole story on its own.
What This Means for You
Understanding Cervical length is an important part of your pregnancy journey. During pregnancy, your care team will use this term regularly. Being familiar with it means you can ask better questions and feel more confident at your antenatal appointments.
Explore our Pregnancy hubGood to Know
Transvaginal cervical length scans are available at KKH and NUH and are recommended for women with risk factors for preterm birth. Most low-risk pregnancies do not require this additional scan.
Related Terms
Source: https://www.acog.org/womens-health/dictionary
Always consult your healthcare provider for personalised advice.
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