Cerclage for an incompetent cervix: what to know

Cervical insufficiency means the cervix shortens or opens too early, sometimes with little pain. A specialist considers the pregnancy history, examination and ultrasound measurements rather than relying on a single finding. Cerclage may be planned because of previous pregnancy events or offered when cervical change is found during the current pregnancy. It is not suitable in every situation, particularly if labour, significant bleeding, infection or ruptured membranes are present.

The stitch is usually placed through the vagina under anaesthesia. Its purpose is mechanical support; it cannot treat infection or stop contractions. The timing of removal and the birth plan depend on the type of stitch, pregnancy progress and whether labour begins.

Before the procedure, tell the maternity team about medicines, allergies, bleeding, discharge, pain or leaking fluid. Follow the hospital's instructions about eating, drinking and medicines on the day. After placement, mild cramping or light spotting can occur. Use only pain relief recommended by your clinician and follow individual advice about exercise, work, sex and travel; restrictions are based on your circumstances rather than a universal rule.

Keep all maternity and ultrasound appointments. Monitoring can assess the cervix, pregnancy and any symptoms, but the stitch itself does not replace routine antenatal care. Know whom to contact outside clinic hours before going home.

Contact your maternity unit urgently for regular tightening or contractions, increasing pelvic pressure, moderate or heavy bleeding, fever, chills, unpleasant-smelling discharge, or a gush or persistent trickle of fluid. Severe abdominal pain, feeling faint or heavy bleeding warrants emergency care. Do not wait for a scheduled visit if symptoms suggest labour, infection or ruptured membranes, because the stitch may need urgent assessment or removal.

Ask what findings support cerclage in your pregnancy, which technique and anaesthetic are planned, what alternatives apply, and when removal is expected. Clarify the benefits and risks in your circumstances, the follow-up schedule, which symptoms require the maternity unit, and how the stitch could affect labour or a planned caesarean birth.