What should you know about twin pregnancy cervical cerclage?

The cervix is the lower opening of the uterus. In some pregnancies it shortens or opens earlier than expected, which can contribute to preterm labour. A cerclage places a strong suture around the cervix through the vagina; less commonly, another surgical route is used. Carrying twins increases the need for specialist planning because the uterus is more stretched and monitoring may be closer. A stitch is not suitable for everyone and does not treat every cause of early contractions, bleeding, infection, or ruptured membranes.

Your team may assess cervical length by ultrasound and review your obstetric history before recommending a stitch. Discuss the timing, anaesthesia, expected observation, activity advice, and whether vaginal medicines or other monitoring are planned. After the procedure, follow instructions about rest, intercourse, lifting, and follow-up rather than imposing restrictions yourself. The stitch is removed before labour or earlier if labour begins, waters break, or another clinical reason makes removal necessary.

Contact your maternity unit urgently for regular tightening, pelvic pressure, new lower-back pain, vaginal bleeding, watery discharge, fever, or foul-smelling discharge after a cerclage. Go to emergency care for severe pain, heavy bleeding, or a sudden gush of fluid. These symptoms can indicate labour, infection, or ruptured membranes and should not wait for a routine appointment.

Ask what your cervical measurements show, why a stitch is being considered, what alternatives exist, how twins change monitoring, and whom to call if contractions or fluid leakage starts.