Cervical insufficiency is a condition where the cervix begins to open too early during pregnancy, sometimes without any noticeable contractions or pain. It typically occurs in the second trimester and can lead to preterm birth or pregnancy loss if it is not identified and managed in time. The condition is also sometimes referred to as an incompetent cervix, though many providers have moved away from that term because it can feel discouraging to patients.
The cervix normally stays firm and closed throughout most of pregnancy, gradually softening and opening only as labor approaches. With cervical insufficiency, that process happens much sooner than it should. Understanding the condition and knowing your risk factors can help you and your care team take steps to protect your pregnancy.
How Is Cervical Insufficiency Detected?
One of the most reliable ways to identify cervical insufficiency is through cervical length screening, which is done using a transvaginal ultrasound. During this quick and painless exam, your provider measures the length of your cervix. A cervix that measures shorter than expected for your stage of pregnancy may be a sign that it is beginning to open or thin out too early.
Cervical length screenings are usually performed between 16 and 24 weeks of pregnancy. For patients with known risk factors, these screenings may happen on a regular schedule so that changes can be caught early. Tracking cervical length over time gives your maternal-fetal medicine team important information about whether intervention is needed.
Who Is at Risk?
Certain factors can increase your chances of developing cervical insufficiency. Women who have experienced a prior second-trimester pregnancy loss or an early preterm birth are among those at the highest risk. A history of cervical procedures, such as a Loop Electrosurgical Excision Procedure (LEEP) or cone biopsy, can also weaken the cervix over time.
Other risk factors include carrying multiples, having a uterine abnormality, or having a connective tissue disorder. Some women are diagnosed after their cervix is found to be shortening on a routine ultrasound, even without a clear history. If any of these apply to you, your provider will likely recommend closer monitoring throughout pregnancy. Understanding what makes a pregnancy high risk can help you prepare for the type of care you may need.
What Is a Cerclage and When Is It Recommended?
A cerclage is a procedure in which a stitch is placed around the cervix to help keep it closed during pregnancy. It is typically recommended for patients who have a history of cervical insufficiency, a prior second-trimester loss, or a cervix that is found to be shortening on ultrasound.
There are two main types. A history-indicated cerclage is placed early in the pregnancy, usually between 12 and 14 weeks, based on a patient’s obstetric history. An ultrasound-indicated cerclage is placed later, typically when cervical shortening is detected during routine screening. Your maternal-fetal medicine specialist will determine the right timing and approach based on your individual situation. These are among the advanced treatment options available for managing high-risk conditions.
What to Expect During the Procedure and Recovery
A cerclage is typically performed in an outpatient setting under regional or general anesthesia. The procedure itself is relatively quick and involves placing a strong suture around the cervix through the vagina. Most patients go home the same day.
After the procedure, it is common to experience mild cramping and light spotting for a few days. Your provider may recommend rest for a short period and will likely ask you to avoid heavy lifting, strenuous activity, and intercourse for a set amount of time. These activity restrictions are an important part of giving the cerclage the best chance of working effectively. Your care team will give you clear, specific guidelines tailored to your situation.
Ongoing Monitoring After a Cerclage
Receiving a cerclage does not mean your care plan ends. Regular follow-up appointments and cervical length checks are a standard part of the monitoring plan. These visits allow your provider to make sure the cerclage is holding and that your cervix remains stable. The High Risk Pregnancy Center’s approach to pregnancy team management ensures that your entire care team stays coordinated throughout this process.
The cerclage is typically removed at around 36 to 37 weeks of pregnancy, unless there is a reason to remove it sooner. At that point, many patients go on to deliver at or near full term. Throughout the process, your maternal-fetal medicine team will be closely tracking your pregnancy and adjusting your care plan as needed.
Your High-Risk Pregnancy Team Is With You
Cervical insufficiency can feel scary, but early detection and the right care plan make a real difference in outcomes. If you have a history of preterm birth, pregnancy loss, or cervical procedures, talk to your provider about whether cervical length screening or a cerclage may be right for you. The specialists at the High Risk Pregnancy Center are experienced in managing cervical insufficiency and are here to support you through every step. To learn more or schedule an appointment, call (702) 382-3200 or visit hrpregnancy.com.
