02/14/2024
How long does an induction of labor take?
It depends on how many babies a patient has had in the past, how big the baby is, and especially if the cervix is "favorable". That refers to whether the cervix is dilated, soft, thinning ("effaced"), and what position it is in. If we have to do an induction with an "unfavorable" cervix for medical reasons, we use various methods to "ripen" the cervix over the course of 1, 2 or sometimes even 3 days. Once the cervix is ready, we start contraction medication (oxytocin) to stimulate the uterus to go into labor. Once 6 cm is reached, that is called "active" labor. Pushing begins at 10cm. The key to avoiding a cesarean section is patience with the process and knowing what to expect.
Elective inductions are done without a medical reason, but are much more likely to be successful with a favorable cervix in someone who has already had a vaginal delivery before. They are not done less than 39 weeks of gestation.