What does dilated in pregnancy mean
Effacement and dilatation need to occur for a baby to be born through the birth canal. Effacement means that the cervix stretches and gets thinner. Dilatation means that the cervix opens.
As the baby's head drops down into the pelvis, it pushes against the cervix and causes the cervix to relax and thin out, or efface.
Effacement is described as a percentage. For example, if your cervix is not effaced at all, it is 0% effaced. If the cervix has completely thinned, it is 100% effaced.
After the cervix begins to efface, it will also begin to open (cervical dilatation).
Cervical dilatation is expressed in centimeters from 0 to 10. Zero means that the cervix is closed, and 10 means that it is completely dilated. Your cervix must be completely dilated before you can begin the pushing stage.