Cervix dilation is the opening of the cervix, the neck of the uterus, during childbirth. Body changes during the labor process to allow the baby to pass through the birth canal. Although it is exciting to hold the baby, many women may be nervous and worry about the labor pain and delivery near the due date. Knowing these changes may help them to stay calm. Childbirth includes three stages, and cervical dilation is crucial since it allows the baby to come out. Vaginal delivery may not be possible if there is no adequate cervical dilation during the labor. Doctors may also use various interventions to dilate the cervix if there is a delay. Read on to learn more about the signs, evaluation, and process of cervix dilation during labor.
What Is Cervix Dilation?
It is the opening of the neck of the uterus, which happens in the first stage of labor. The cervix dilates (uterus opens) due to contractions, and is a vital part of labor and delivery. The dilation is measured in centimeters. It starts from 1cm and grows to 10cm when it is called a complete dilation (1). If your due date is around the corner and your cervix is dilating, then it could mean you will soon get into labor. Typically, the cervix starts to dilate in the first phase of labor, which is also called the latent phase (1).
Dilation And Effacement: What Is The Difference?
The stretching and thinning of the cervix is called effacement. Cervical effacement is measured in percentage and mostly happens before dilation. The cervix thins and softens at first, and then opens. This happens when labor begins, which is usually around week 37. However, in some women, it could happen during week 38 or later. Usually, in the first pregnancy, the cervix dilates during labor or after the contractions start. And in some cases, cervical effacement and dilation might happen just before the labor (2). As every pregnancy is different, the occurrence of effacement and dilation can differ.
How Do You Know If Your Cervix Is Dilating?
You will be able to notice even the slightest of changes in the body if you are observant as you near the due date. The following signs indicate that the cervix is dilating.
How Does Checking Cervix Dilation Help?
Checking cervical dilation helps you to know how close you are to labor and the effective management of labor. When your due date is nearing or has passed, your doctor may check the cervix to see if it is dilated.
Procedure To Check The Cervix For Dilation
Doctors usually check the dilation using their fingers. It is a sterile method and the dilation is measured in centimeters (7) (8). Steps to check cervix dilation: Follow these steps to check if the cervix is dilated. i. Use two fingers: Index and middle fingers are inserted into the vagina and against the cervix to gauge the opening. Avoid the anal area. ii. Assess the dilation: The two fingers should feel the cervix and the opening to assess the length. You can use the cervix dilation chart to compare your dilation with.
Cervix Dilation Chart
The below chart has been taken from the US Operational Obstetrics and Gynecology (8). Although professionals generally recommend checking of cervical dilation, there are certain cases where they do not suggest it.
When Not To Check Your Cervix During Pregnancy?
If your doctor finds it risky to check cervical dilation, then do not attempt it. Cervical dilation should only be done when your medical professional has recommended it. Otherwise, do not attempt it. Next, we see if it is possible to dilate the cervix to speed up the labor process.
Are There Ways To Dilate The Cervix?
Yes, there are natural and medical ways to dilate the cervix. To dilate the cervix, it has to be softened (cervical ripening) first. Usually, medical experts prefer waiting for it to happen naturally. But in some cases, it becomes necessary to dilate the cervix and induce labor. Some of the natural methods include walking, using a birthing ball, taking herbal supplements, indulging in sexual intercourse, and nipple stimulation. Medical methods include medications and medical/surgical procedures such as stripping of the membranes (9).
