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.
|
By
|
Healthwise Staff |
|
Primary Medical Reviewer
|
Sarah Marshall, MD - Family Medicine |
|
Specialist Medical Reviewer
|
Kirtly Jones, MD - Obstetrics and Gynecology |
|
Last Revised
|
November 2, 2011 |