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Labor & Birth Term

Dilation

Last updated: June 2026

Definition

The opening of the cervix during labor, measured in centimeters from 0 (closed) to 10 (fully dilated).

Clinical Context

In obstetrics and maternal healthcare, terms like Dilation 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 dilation in your own pregnancy, consult your obstetrician or health team immediately.

Term FAQs

What is the definition of Dilation?

In pregnancy and obstetrics, Dilation is defined as: The opening of the cervix during labor, measured in centimeters from 0 (closed) to 10 (fully dilated).

What category does the term Dilation belong to?

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

Why is understanding Dilation important?

Understanding Dilation 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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