Cervical cerclage for twins: what to know

Cerclage places a strong suture around the cervix to help it remain closed. Twin pregnancies already place greater pressure on the cervix, but a stitch is not routinely suitable simply because two babies are present. A maternity specialist considers whether the cervix is shortening or opening, whether the membranes are exposed, and whether a previous pregnancy suggests cervical weakness.

The possible benefit must be weighed against procedure-related concerns such as bleeding, infection, contractions or rupture of the membranes. Active labour, significant infection or ruptured membranes may make placement inappropriate.

Bring details of earlier pregnancies, including any late miscarriage, early birth or previous cervical procedure. Your team may assess cervical length by ultrasound and check for contractions, bleeding, fluid leakage or infection before recommending a plan. If cerclage is offered, ask about anaesthesia, observation afterwards, activity guidance and the expected timing and method of stitch removal.

Keep every planned maternity appointment because cervical change can occur without obvious discomfort. Follow the care team's instructions about medicines, sex, exercise and travel rather than imposing restrictions on yourself.

Contact your maternity unit urgently for vaginal bleeding, a gush or persistent trickle of fluid, regular tightening, worsening pelvic pressure, fever, chills, foul-smelling discharge or severe abdominal pain. After a stitch, new contractions or fluid leakage also need prompt assessment because they can signal labour, membrane rupture or infection.

Ask what specific finding supports cerclage in your twin pregnancy, what alternatives are reasonable, how your cervix will be monitored, and which symptoms should take you directly to maternity triage. Clarify whether the planned birth approach affects removal of the stitch.