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Labor & Birth Term

Effacement

Last updated: June 2026

Definition

The thinning and shortening of the cervix during labor, measured in percentages from 0% (thick) to 100% (fully thinned).

Clinical Context

In obstetrics and maternal healthcare, terms like Effacement represent key anatomical, physiological, or developmental parameters monitored during gestation, labor, and the postpartum stages. Understanding these terms empowers parents to converse with doctors, interpret ultrasound reports, and track fetal progress.

Medical Notice: This term definition is for educational and planning purposes only. It is not medical advice. If you have any clinical questions or concerns about effacement in your own pregnancy, consult your obstetrician or health team immediately.

Term FAQs

What is the definition of Effacement?

In pregnancy and obstetrics, Effacement is defined as: The thinning and shortening of the cervix during labor, measured in percentages from 0% (thick) to 100% (fully thinned).

What category does the term Effacement belong to?

The term Effacement belongs to the Labor & Birth category of pregnancy and neonatal health terminology.

Why is understanding Effacement important?

Understanding Effacement helps expectant mothers and partners make sense of medical reports, doctor consultations, and gestational developments.

Related Terms

Active Labor

The phase of labor where the cervix dilates from 6 to 10 centimeters, with contractions becoming stronger, longer, and closer together.

Breech Position

A fetal presentation where the baby's buttocks or feet are positioned to enter the birth canal first, rather than the head.

C-Section (Cesarean)

The surgical delivery of a baby through incisions made in the mother's abdomen and uterus.
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