Controlled Artificial Rupture of Membranes

During an examination, a trained clinician uses a sterile instrument to make a small opening in the membranes around the baby. Fluid then drains through the vagina. The team considers your labour progress, the baby's position, and whether the baby's head is well applied before recommending it. The baby's heart rate is checked as part of safe monitoring, and contractions may change afterward.

Ask why the procedure is being suggested, what alternatives are available, and how the team will monitor you and your baby. Tell the clinician about pain, bleeding, allergies, or concerns before the examination. Afterward, note fluid colour and smell, contraction changes, and baby movements. The maternity team can explain comfort options and what happens if labour does not progress as hoped.

Tell your maternity team immediately about heavy bleeding, severe or constant pain, fever, reduced baby movements, or fluid that is green or foul-smelling. A sudden change in the baby's heart-rate pattern or a cord-related concern is managed by the clinical team urgently. If fluid starts leaking before term outside a planned procedure, contact maternity services promptly because preterm labour may need assessment.

Ask what the intended benefit is for your labour, whether the baby's head is low and stable, and how the team would respond if the heart-rate pattern changes. Ask what signs after the procedure should prompt you to call.