Signs of cervical dilation before labor may include increasingly regular and stronger contractions, abdominal tightening accompanied by back or pelvic pain, bloody mucus discharge, leaking or breaking of the amniotic fluid, pelvic pressure, and the urge to push. Cervical dilation progresses gradually from the latent phase to complete dilation at 10 cm.
As labor approaches, Moms may begin to experience various changes in the body, such as increasingly strong contractions, abdominal tightening, and the release of bloody mucus. These changes may indicate that the body is preparing for labor.
One thing that often makes expectant mothers curious is the signs of cervical dilation. Cervical dilation occurs when the cervix gradually thins and opens until it reaches complete dilation.
What Is Cervical Dilation?
Cervical dilation is the process in which the cervix gradually opens as part of labor. The cervix, which was previously closed, undergoes thinning (effacement) and widening (dilation) to allow the baby to pass through the birth canal.
Cervical dilation is generally divided into the latent and active phases. Once the cervix reaches complete dilation of 10 cm, labor progresses to the next stage, when the baby begins to be delivered.
Although Moms may experience several signs associated with cervical dilation, the number of centimeters of dilation cannot be determined based solely on pain or contractions. An examination by a midwife or doctor is needed to assess the condition of the cervix.
Signs of Cervical Dilation Before Labor
Before and during labor, the body may show several changes. However, every mother may experience these signs in a different order and with varying intensity.
1. Increasingly Regular and Stronger Contractions
Contractions are one of the main signs of labor. As labor approaches, contractions tend to become more regular and stronger, last longer, and occur closer together.
Contractions occur because the uterine muscles contract to help dilate the cervix and move the baby toward the birth canal. At first, contractions may feel similar to menstrual cramps. As labor progresses, the cramping sensation usually becomes stronger.
2. Abdominal Tightening Accompanied by Back or Pelvic Pain
During contractions, the uterus tightens, causing the abdomen to feel firmer to the touch. After the contraction ends, the uterus becomes more relaxed again. Discomfort may also radiate to the lower back or pelvis. Its intensity may increase as contractions become stronger and more regular.
However, a tightening abdomen does not always mean that cervical dilation has begun. False contractions or Braxton Hicks contractions can also cause the abdomen to feel tight, especially toward the end of pregnancy.
3. Passing Bloody Mucus
As labor approaches, the mucus that has helped protect the cervix during pregnancy may be discharged from the vagina. The mucus may sometimes contain a small amount of blood, which is known as a bloody show.
Passing bloody mucus can be a sign that the cervix is beginning to change in preparation for labor. However, this sign cannot be used to determine how many centimeters the cervix has dilated.
If the bleeding is as heavy as a menstrual period or heavier, Moms should seek medical attention immediately because bleeding during pregnancy and labor needs to be evaluated.
4. Leaking or Breaking of the Amniotic Fluid
Amniotic fluid may leak slowly or come out suddenly when the amniotic sac ruptures. Amniotic fluid is generally clear or slightly yellowish. The membranes may rupture before or during labor. Therefore, leaking or breaking of the water does not necessarily mean that the cervix is fully dilated.
If Moms feel that their water has broken, they should contact or go to a healthcare facility for an assessment, especially if the fluid is green, brown, has an unpleasant odor, or is accompanied by bleeding.
5. Pelvic Pressure and the Urge to Push
As the baby moves further down into the pelvis, Moms may feel increased pressure in the pelvic area or a sensation similar to needing to have a bowel movement.
A strong urge to push generally occurs when the cervix is fully dilated and the baby has descended further into the birth canal. WHO notes that during the expulsive stage, the cervix is fully dilated at 10 cm, the presenting part of the baby reaches the pelvic floor, and the mother may feel the urge to push.
If Moms experience a strong urge to push, follow the instructions of the healthcare provider immediately. Do not try to push before receiving instructions from a midwife or doctor.
Stages of Cervical Dilation
Cervical dilation occurs gradually. The amount of time required can vary from one mother to another, so Moms do not need to compare the rate of dilation with another mother's experience.
1. Latent Phase or Early Dilation
The latent phase is the initial stage when the cervix begins to thin and open. Contractions during this phase may not be very strong and may still occur at relatively long intervals.
The dilation threshold used to define the latent phase can vary across different guidelines. WHO describes the latent phase as the early period of labor before the active phase, while the transition toward active labor occurs as contractions become regular and the cervix continues to change.
At this stage, Moms may begin experiencing increasingly regular contractions. If contractions become more frequent and stronger, Moms can start recording their duration and the intervals between contractions as information to share with their healthcare provider.
2. Active Phase
During the active phase, contractions generally become stronger and more regular, while the cervix continues to dilate.
WHO uses cervical dilation of around 5 cm as the beginning of the active phase in its evidence-based recommendations, although some previous guidelines used 4 cm as the threshold. This shows that the division of labor into phases should not be used as the sole reference for assessing every mother's condition.
During this phase, Moms usually require closer support and monitoring from healthcare providers. The mother's condition, the baby's heart rate, contractions, and the progress of cervical dilation may be monitored to ensure that labor is progressing well.
3. Complete Dilation
Complete dilation means that the cervix has opened to approximately 10 cm. At this stage, the baby can descend further into the birth canal and labor progresses to the stage of delivering the baby.
Moms may feel increasing pressure in the pelvis and a strong urge to push. At this point, healthcare providers will provide guidance on when and how to push according to the condition of the labor.
Keep in mind that there is no fixed standard requiring every mother to experience cervical dilation at a particular rate. The progress of labor should be assessed comprehensively by a healthcare provider.
How to Speed Up Cervical Dilation During Labor
Moms may come across various methods believed to speed up cervical dilation, such as walking, trying certain positions, or having sexual intercourse. However, none of these methods can guarantee that cervical dilation will progress more quickly.
As long as the pregnancy allows it, healthcare providers may recommend light activities or changes in position to help Moms feel more comfortable during labor. Walking or changing positions may also be part of supportive care during labor, but they should not be considered guaranteed ways to open the cervix.
If cervical dilation is not progressing as expected or certain medical conditions are present, the doctor can evaluate the situation and determine whether medical intervention is needed. Any intervention to speed up labor should be based on the condition of both the mother and baby and on medical indications.
Therefore, Moms should not try medications, herbal remedies, or labor-induction methods on their own without consulting a doctor.
Differences Between True and False Contractions
As labor approaches, Moms may have difficulty distinguishing true contractions from false contractions or Braxton Hicks contractions. Here is an overview of the differences:
| True contractions | False contractions |
|---|---|
| Become increasingly regular | Tend to be irregular |
| The intervals between contractions become shorter | The intervals may vary |
| Become increasingly intense | Intensity usually does not continue to increase |
| May last longer over time | Usually do not become longer |
| Do not disappear simply by changing position or resting | May ease after resting or changing activities |
| May be accompanied by cervical changes | Do not cause progressive cervical dilation |
True contractions are associated with cervical changes during labor. In contrast, contractions that do not cause progressive cervical dilation may be considered false contractions. WHO also notes that contractions during false labour may vary in strength, duration, and frequency.
However, Moms do not need to determine on their own whether the contractions they are experiencing have caused cervical dilation. If there is any doubt, a healthcare provider can perform an examination to assess the progress of labor.
When Should You Go to the Hospital?
Moms should follow the birth plan prepared together with their doctor or midwife, including when to go to a healthcare facility. Once labor begins, do not wait until the pain becomes very severe before seeking medical assistance.
Contact a healthcare provider or go to the hospital immediately if:
- Contractions become increasingly regular, strong, and frequent.
- The amniotic fluid leaks or breaks.
- Vaginal bleeding occurs.
- The baby's movements decrease or become different from usual.
- You experience a strong urge to push.
- The umbilical cord or part of the baby's body is visible through the vagina.
- The amniotic fluid is green, cloudy, or has an unpleasant odor.
- Moms experience severe pain or a condition that feels abnormal.
The Indonesian Ministry of Health also lists bleeding, the umbilical cord or a part of the baby's body being visible, cloudy and foul-smelling amniotic fluid, seizures, and severe maternal pain as danger signs requiring immediate medical attention.
If the water has broken, Moms should also seek an assessment promptly even if the contractions are not yet strong.
Conclusion
Signs of cervical dilation before labor may include increasingly regular and stronger contractions, bloody mucus discharge, leaking or breaking of the amniotic fluid, pelvic pressure, and the urge to push. However, these signs cannot confirm how many centimeters the cervix has dilated because cervical changes need to be assessed through an examination by a healthcare provider.
Understanding the changes in your body and the stages of cervical dilation can help Moms feel more prepared for labor while recognizing when immediate medical attention is needed. While preparing for delivery, Moms can also choose products that provide greater comfort, such as MAKUKU Slim Luxury Silky, which features SAP Thin Core Technology and Natural Fine Silk to provide a thin, soft design with high absorbency for the postpartum period.
FAQ
1. What are the signs that cervical dilation has started?
Some signs may include increasingly regular and stronger contractions, abdominal tightening, back or pelvic pain, bloody mucus discharge, and pelvic pressure. However, these signs cannot confirm how many centimeters the cervix has dilated.
2. Can cervical dilation be determined without an examination?
Moms may experience signs associated with labor, but the amount of cervical dilation cannot be determined based solely on contractions or pain. An examination by a midwife or doctor is needed to accurately assess cervical dilation.
3. How many centimeters of dilation are needed to give birth?
Complete cervical dilation is approximately 10 cm. Once the cervix is fully dilated, labor progresses to the stage of delivering the baby. However, the progression of dilation and the amount of time required can vary from one mother to another.
