Cervical effacement

Picture of cervical effacement

As labor nears, the fetus's head drops down into the pelvis and pushes against the cervix. The cervix begins to thin (efface) and open (dilate), sometimes over a few weeks.

Last Updated: December 4, 2009

Author: Sandy Jocoy, RN

Medical Review: Kathleen Romito, MD - Family Medicine & Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology

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