Cervical checks are a common part of late pregnancy care, performed by healthcare providers to monitor changes in the cervix as the body prepares for childbirth. These examinations offer insights into the progression toward labor.
Understanding Cervical Assessments
A cervical assessment involves a physical examination, typically performed manually by a healthcare provider. This allows for evaluation of several factors: dilation, effacement, and station. The cervix also changes in position and consistency, moving from a posterior (backward-facing) and firm state to an anterior (forward-facing) and softer one as labor approaches.
Standard Timing for Checks
For individuals with uncomplicated pregnancies, routine cervical checks typically begin in the late third trimester, often around 36 to 37 weeks of gestation. These checks are usually offered weekly until labor begins. The exact timing and frequency can vary among different healthcare providers. While some providers might perform checks earlier, the primary focus on dilation and effacement usually occurs closer to the due date.
When Checks Might Differ
The timing and frequency of cervical checks can deviate from the standard routine in several situations. If there are signs of preterm labor, such as contractions or premature rupture of membranes, checks might be initiated earlier to assess cervical changes. Similarly, if a pregnancy extends past the due date (post-term), more frequent checks may be recommended to monitor readiness for labor or to determine the need for induction. For planned labor inductions, cervical checks are often performed to help guide the choice of medications or methods. Medical indications like bleeding or other complications can also prompt earlier or more frequent assessments.
Interpreting Measurement Results
The measurements obtained during a cervical check provide information about the body’s readiness for labor. Dilation is measured from 0 to 10 centimeters, with 0 cm meaning the cervix is closed and 10 cm indicating full dilation. Effacement is measured in percentages, ranging from 0% (thick and long) to 100% (paper-thin), signifying how much the cervix has thinned. Station describes how far the baby’s head has descended into the pelvis, typically measured in negative and positive numbers relative to the ischial spines. While these measurements provide a snapshot of cervical changes, they do not precisely predict when labor will start or how quickly it will progress. Many individuals can be somewhat dilated or effaced for weeks before active labor begins.
Your Choice in the Process
Cervical checks are not mandatory procedures, and individuals have the right to decline them. Reasons for declining might include discomfort or a desire to avoid interventions. It is important to have an open conversation with your healthcare provider about your preferences, discussing the potential benefits and risks. This ensures informed decision-making regarding your care during pregnancy and labor.