Cord around the neck slows down blood flow to the baby for a brief time. If conditions worsen you may even need a cesarean to keep the baby healthy. Most babies quickly pass through this stage and normal blood flow resumes, allowing a normal birth. cord around the neck at delivery in about thirty percent of all births. In the majority of cases there are no problems. Occasionally there may be some variable decelerations on the fetal monitor due to the cord being squeezed or stretched.