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To strip the membranes your cervix must already be dilated. It can have some effect to trigger labor. Most doctors prefer to induce by 41 weeks or certainly by 42 weeks to avoid the complications of postterm pregnancy.
During a membrane sweep, your midwife will insert a finger into your vagina and feel for your cervix.Then she'll make sweeping movements just inside the cervix to try to separate your amniotic sac from the cervix itself. This sometimes causes the release of prostaglandins.aving a membrane sweep. Sometimes if you are overdue or your medical team thinks inducing labour is necessary a membrane sweep-sometimes called a cervical sweep, may be suggested.