Stripping membranes, sometimes called membrane sweeping, is a method used to try to start labor. The health care provider puts her or his finger into the cervix -- the mouth of the uterus -- and uses the finger to gently separate the bag of water from the side of the uterus near the cervix.embrane stripping is done to try to start labor. Your health care provider may suggest stripping your membranes if continuing the pregnancy seems dangerous for your health or your infant's health.