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Inducing labor

Definition

Inducing labor refers to different treatments used to start your labor. Treatments can also be used to augment your labor, which means to move it at a faster pace. The goal is to bring on contractions or to make them stronger.

Several methods can help get labor started.

Rupturing the Membranes

Amniotic fluid is the water that surrounds your baby in your womb. It contains membranes or layers of tissue. One method of inducing labor is to "break the bag of waters" or rupture the membranes.

Most of the time, contractions will begin within minutes to a few hours afterward. If labor does not begin after a few hours, you may receive a medicine through your veins to help start contractions. This is because the longer it takes for labor to start, the greater your chance of getting an infection.

Using Prostaglandins

Early in your pregnancy your cervix should be firm, long, and closed. Before your cervix starts to dilate or open, it must first become soft and begin to "thin out."

For some, this process may begin before labor has started. But if your cervix has not begun to ripen or thin, your provider can use a medicine called prostaglandins.

The medicine is placed in your vagina next to your cervix. Prostaglandins will often ripen, or soften the cervix, and contractions may even begin. Your baby's heart rate will be monitored for a few hours. If labor does not begin, you may be allowed to leave the hospital and walk around.

Oxytocin (Pitocin)

Oxytocin is a medicine given through your veins (IV or intravenous) to either start your contractions or make them stronger. A small amount enters your body through the vein at a steady rate. The dose may be slowly increased as needed.

Your baby's heart rate and the strength of your contractions will be monitored closely.

Oxytocin will often create regular contractions. Once your own body and uterus "kick in," your provider may be able to reduce the dose.

Why is it Done?

There are many reasons why you may need labor induction.

The induction of labor may be started before any signs of labor are present when:

Oxytocin may also be started after a woman's labor has started, but her contractions have not been strong enough to dilate her cervix.

References

Levine LD, Srinivas SK. Induction of labor. In: Landon MB, Galan HL, Jauniaux ERM, et al, eds. Gabbe's Obstetrics: Normal and Problem Pregnancies. 8th ed. Philadelphia, PA: Elsevier; 2021:chap 12.

Thorp JM, Grantz KL. Clinical aspects of normal and abnormal labor. In: Lockwood CJ, Copel JA, Dugoff L, et al, eds. Creasy and Resnik's Maternal-Fetal Medicine: Principles and Practice. 9th ed. Philadelphia, PA: Elsevier; 2023:chap 40.

Schedule An Appointment

Contact Atlanta Obsetrics and Gynaecology at The Womens Center Millennium Hospital - 404-ATL-BABY

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Review Date: 11/8/2024

Reviewed By: LaQuita Martinez, MD, Department of Obstetrics and Gynecology, Emory Johns Creek Hospital, Alpharetta, GA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.