When Is an Artificial Rupture of Membranes Typically Performed During Labor?

Reviewed by Suo Lee, MD

Internal Medicine

Doctors usually perform an artificial rupture of membranes during active labor when the cervix is showing progress, often after it has started to ripen or open up during induction.

Explanation

Artificial rupture of membranes, or amniotomy, is usually performed during the active phase of labor. This is when the cervix has begun to open, often around 2-3 centimeters dilation, which shows that the body is getting ready for labor. In some cases, especially when labor is induced or when the healthcare team wants to help speed up the process, the doctor may perform the procedure earlier after the cervix has been softened and thinned by cervical ripening techniques. The main goal is to help labor progress by allowing the release of amniotic fluid and sometimes to make it easier for contractions to be more effective. The timing can vary based on each individual’s progress and specific health factors. Always remember, your healthcare provider will decide the best time to perform an artificial rupture of membranes, ensuring both you and your baby are safe during labor.

(References)

Parrish MM, Kuper SG, Jauk VC, Baalbaki SH, Tita AT, Harper LM. Does Early Artificial Rupture of Membranes Speed Labor in Preterm Inductions? Am J Perinatol. 2018 Jul;35(8):716-720. doi: 10.1055/s-0037-1612631. Epub 2017 Dec 14. PMID: 29241279.
Macky PK, Samar H, Conner SJ, Urick AL, Yeager CA, Tiel DJ, Earwood JS, Marshall B. Just Pop It: Early AROM After Cervical Ripening Reduces the Time to Delivery. J Am Board Fam Med. 2024 Mar 11;37(1):147-149. doi: 10.3122/jabfm.2023.230344R1. PMID: 38448237.
Hill MG, Wise MR, Pauleau E, Treadwell B, Sadler L. Impact of early versus late artificial rupture of membranes during oxytocin induction of labour on the incidence of chorioamnionitis: a randomised controlled trial (ARM trial). Trials. 2025 Jan 22;26(1):27. doi: 10.1186/s13063-025-08722-z. PMID: 39844293; PMCID: PMC11752794.

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