A cervical check, also known as a cervix exam or vaginal exam, is a routine procedure medical providers perform during pregnancy and labor.
A cervical check involves assessing the cervix to determine its dilation, effacement, station, position, and consistency. These checks assess the cervix’s dilation (how open it is) and effacement (how thin it is). This provides valuable information about your readiness for labor.
Learn what you can expect during this essential evaluation.
What Is a Cervical Check?
A cervical check is a health care provider’s manual examination of the cervix. Using sterile, gloved hands, the provider inserts their fingers through your vaginal opening until they reach the cervix.
They then assess the following:
- Consistency — The texture of the cervix.
- Dilation — The degree to which the cervix has opened. Dilation is measured in centimeters (cm), with 10 cm considered fully dilated. Your provider assesses how open your cervix is by measuring how many fingers they can insert and how far apart they can spread them.
- Effacement — The thinning of the cervix as it prepares for labor.
- Position — The angle and direction of the cervix.
- Station — The position of your baby’s head in relation to the pelvis.
Monitoring cervical changes helps guide decisions regarding induction or intervention.
Why are cervical checks important?
Cervical checks can give your health care provider essential information about how close you are to birth. They can help assess the health of the cervix, including dilation and effacement.
Cervical checks empower you to make informed choices. If your cervix is dilated and effaced, you might choose interventions like breaking your water or taking drugs to speed up labor.
Or, if your cervix isn’t ready, you can discuss waiting or alternative approaches.
When Do Cervical Checks Start?
Cervical checks typically begin during the third trimester, around 36 or 37 weeks. However, the timing varies based on individual circumstances and your medical history.
Talk to your provider to determine the appropriate schedule for you.
How to Understand Cervical Dilation During Labor?
During labor, the cervix goes from tightly closed to fully open, creating an exit for your baby. This is the process called dilation.
Dilation refers to the opening of the cervix. It indicates how wide the cervix has become.
During pregnancy, the cervix remains closed and firm. As labor approaches, it gradually softens and starts to dilate.
The U.S. Department of Health and Human Services Office on Women’s Health divides labor into three stages:
1. Early, active, and transition labor
In the early stages, the cervix dilates to the following sizes:
- 1 cm (about the width of the tip of your pinky finger).
- 2 cm (about the width of a penny).
- 3 cm (about the width of a nickel).
Contractions during early labor are often mild and irregular. They gradually intensify as labor progresses and the cervix continues to dilate.
Resting and eating a snack during this stage can help conserve energy for the more tiring stages ahead.
As labor advances into more active stages, the cervix dilates further:
- 4 cm (about the width of a golf ball).
- 5 cm (about the width of a small mandarin orange).
- 6 cm (about the width of a tennis ball).
Contractions become stronger and more regular and push the baby downward.
Transition labor occurs as the cervix approaches full dilation (10 cm). Contractions peak, and many women experience a strong urge to push.
2. Pushing and birth
The body actively pushes out the baby.
You’ll become fully dilated (10 cm) during this stage.
Listen to your body and follow your health care provider’s guidance.
3. Delivery of the placenta
After the baby is born, contractions continue to expel the placenta.
The placenta usually delivers within a few minutes after your baby’s birth.
Remember, every woman’s labor experience is unique.
If you’re unsure whether you’re in labor, pay attention to contractions that:
- Begin at the top of the uterus and feel like they’re pushing down.
- Don’t stop with rest or a warm shower.
- Intensify and become regular over time.
Remember that your health care provider will monitor your progress and guide you through each stage.
How Long Does a Cervical Check Take?
A cervical check can take anywhere from 30 seconds to a few minutes.
The time needed to complete your cervical check can vary based on several factors:
- Cervix position — The exam may be more challenging if your cervix is high and further back in position.
- Patient comfort — Remaining still and relaxed during the exam helps to ensure accuracy.
- Provider experience — An experienced provider may perform the exam more efficiently.
Remember, your provider should explain the procedure and promptly stop if you find it uncomfortable.
Are Cervical Checks Necessary?
Some pregnant people may choose to opt out of cervical checks.
However, cervical checks are very common and can equip you and your health care provider with important information.
Do Cervical Checks Hurt?
Some people may find cervical checks uncomfortable or slightly painful, but the sensation is usually brief. Try practicing slow, deep breaths or placing both fists under your lower back to ease discomfort.
The discomfort can feel especially pronounced for people who have a history of pelvic floor pain or dysfunction or trauma. Vaginal tissue can also become more sensitive toward the end of pregnancy. This can make the exam feel uncomfortable or even painful.
Your provider can also help minimize pain. If you’re experiencing discomfort, let your health care provider know.
Can Cervical Checks Induce Labor?
Cervical checks themselves don’t typically induce labor. However, they can sometimes trigger contractions or cause discomfort, especially if you’re already close to labor.
So, though a cervical check alone won’t directly kick-start labor, approaching it with care is essential. You also should discuss any concerns with your health care provider.
What Is the Difference Between Cervical Check and Membrane Sweep?
A membrane sweep (also called a “stripping” procedure) is different from a cervical check.
A membrane sweep aims to kick-start labor. Your health care provider will sweep a finger across the membranes that connect the amniotic sac to the wall of your uterus.
This separation can release prostaglandins, which help soften, thin, and dilate (open) your cervix in preparation for labor. Health care providers often recommend membrane sweeps as a first step before considering induction.
A cervix check is more of an assessment tool. Unlike a membrane sweep, the purpose of a cervical check isn’t to induce labor. Instead, a cervical check provides valuable information about labor progression.
Is Bleeding After a Cervical Check Concerning?
Bleeding after a cervical check is relatively common and usually not a cause for alarm. Some spotting or light bleeding can occur after a cervical check. This happens because the cervix is sensitive and the examination can cause minor irritation.
Reasons for light bleeding after a cervical exam may include:
- Cervical manipulation — The physical manipulation of the cervix during the check can lead to small blood vessels breaking.
- Cervical mucus plug disruption — The cervical mucus plug (which seals the cervix during pregnancy) may become dislodged during the exam, leading to spotting.
- Increased blood flow — The cervix becomes more vascular during pregnancy, making it prone to bleeding.
If your bleeding is heavy (more than light spotting), persists or worsens, or comes with severe pain, contact your health care provider immediately.
Discuss any unusual symptoms or concerns with your provider.
Editor's Note: This article was originally published on , and was last reviewed on .