Cerclage in a twin pregnancy: what to know

Twin pregnancy itself does not automatically mean that a cervical stitch is needed. The balance of possible benefit and harm differs from that in a singleton pregnancy. A maternal-fetal medicine specialist may review previous pregnancy outcomes, cervical length on ultrasound, whether the cervix is opening, membrane position, contractions, bleeding and signs of infection.

Cerclage involves placing a strong stitch around the cervix, most often through the vagina under anaesthesia. It supports the cervix but does not reduce uterine stretching, treat infection or stop established labour. If a stitch is proposed, the clinician should explain why the findings in this pregnancy make it a reasonable option and what alternatives are available.

Attend the recommended specialist reviews and ultrasound appointments. Ask whether monitoring alone, medication or cerclage is being considered, and how each option applies to the cervical findings. If surgery is planned, follow instructions about food, drink and regular medicines, and arrange practical support for recovery.

Afterwards, mild spotting or cramping may occur. Take only medicines approved by the maternity team and follow its specific advice about activity, sex, work and travel. Continue routine twin-pregnancy monitoring, including assessment of each baby's growth when advised; a cervical stitch does not replace that care.

Call the maternity unit promptly for regular tightenings, worsening pelvic pressure, new lower back or abdominal pain, bleeding, fever, offensive discharge, or a gush or ongoing trickle of fluid. Heavy bleeding, severe pain, faintness or feeling seriously unwell needs emergency assessment. These warning signs matter whether or not a cerclage has been placed and may require examination of the cervix and stitch.

Request a clear explanation of the cervical finding, the reason for recommending or avoiding cerclage, and the uncertainties specific to twins. Ask about anaesthesia, procedure risks, alternatives, follow-up, planned stitch removal and what would happen if contractions or membrane rupture occurred. Also clarify how the cervical plan fits with growth scans and the anticipated mode of birth.