Early labor

This animation shows the signs of the first phase of labor (early labor).

After the membranes rupture and the water breaks, a woman may begin to experience the first phase of labor (early labor). The average time of early labor is extremely variable, lasting from hours to days. It is more common for the first phase of labor to begin before the membranes rupture.

During this time, the pressure of repeated regular contractions causes the cervix, which may have been closed when labor began, to open up to a diameter of 4 centimeters while becoming much thinner.

Various techniques can be used to help alleviate the discomfort a woman may experience during the first phase of labor such as back-rubs and breathing exercises.

Reviewed last on: 9/16/2008
Dan Sacks MD, FACOG, Obstetrics & Gynecology in Private Practice, West Palm Beach, FL. Review provided by VeriMed Healthcare Network.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

Connect with UMMC

© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885