excerpted from Lamaze Healthy Birth Practices, lamaze.org
Healthy Birth Practice #1: Let Labor Begin on Its Own
Induction of labor—starting labor artificially—is one of the most controversial issues in maternity care today. In many hospitals, labor is induced only for medical reasons, and care providers follow strict guidelines. Yet, in other hospitals, women have elective inductions—those done for convenience rather than for medical reasons. Many women are confused about when induction is truly necessary. Are there problems with induction? What are the benefits of letting labor begin on its own? When does it make sense to induce, and when is it better to wait? What is safest for you and your baby?
Your body is perfectly designed to birth your baby. During the last weeks of pregnancy, your body and your baby prepare for birth. For a first-time mother, the baby often “drops down” into the pelvis in the weeks before birth. The cervix tilts forward and gradually begins to soften. Over a period lasting from a few days to a few weeks, you may (or may not) feel irregular contractions that help your cervix gradually thin and, perhaps, even dilate a few centimeters.
During the last part of your pregnancy, your baby’s lungs mature, and he puts on a protective layer of fat, taking on the characteristic chubbiness of a newborn. Critical brain development continues through 41 weeks of gestation. Scientists estimate that there is a five-fold increase in the volume of white matter in the fetal brain from 35 to 41 weeks gestation. Researchers are still investigating how the brain continues to grow after the baby is born, compared to how the brain grows when the baby is still inside his mother (Kinney, 2006).
When the baby’s organs are fully mature and he is ready for life outside his mother’s uterus, scientists believe the baby’s body releases a tiny amount of a substance that signals the mother’s hormones to begin labor (Condon, Pancharatnam, Faust, & Mendelson, 2004). The surge of maternal hormones that accompanies full-term gestation and spontaneous vaginal birth appears to help the baby prepare for the transition from life inside the womb to outside and, especially, for breathing with his lungs for the first time (Jain & Eaton, 2006). Even if you know ahead of time that your baby needs to be delivered by cesarean surgery, the best way to tell that your baby is healthy enough to be born is to let labor begin on its own.
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