What is the prevalence of spontaneous rupture of membranes during pregnancy?

Reviewed by Yoshinori Abe, MD

Internal Medicine

About 1 in 10 women at term experience spontaneous rupture of membranes (SROM) during pregnancy, while roughly 3 in 100 pregnancies involve preterm premature rupture of membranes (PPROM). Recognizing the signs early is critical, as timing and gestational age significantly impact outcomes for both mother and baby.

If you're pregnant and noticing unusual fluid leakage, cramping, or other symptoms, don't wait to get clarity. A free, instant, online symptom check can help you understand what your body may be signaling and guide your next steps—whether that's monitoring at home or contacting your provider immediately. Getting informed quickly could make all the difference for you and your baby.

Reviewed for medical accuracy: 07/15/2026

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Explanation

When we talk about spontaneous rupture of membranes, we mean the breaking of the amniotic sac by itself without any medical help. At term, which is after 37 weeks, roughly 8-10% of pregnancies result in this before labor actually starts. This is called prelabor rupture of membranes (PROM). On the other hand, when the water breaks before 37 weeks, it is known as preterm premature rupture of membranes (PPROM) and occurs in about 3% of all pregnancies. The exact numbers might change based on the population and other health factors, such as infections or even environmental influences. Studies in different areas, including parts of Africa and other settings, have noted that rates can vary. It is important to remember that each pregnancy is unique. If you have concerns about leaking fluid or any other signs during pregnancy, you can use a free symptom checker to help understand your symptoms, though it's always important to follow up with your healthcare provider to get the right check up and guidance for you and your baby.

(References)

Yasmina A, Barakat A. Rupture prématurée des membranes à terme: facteurs pronostiques et conséquences néonatales [Prelabour rupture of membranes (PROM) at term: prognostic factors and neonatal consequences]. Pan Afr Med J. 2017 Feb 5;26:68. French. doi: 10.11604/pamj.2017.26.68.11568. PMID: 28451045; PMCID: PMC5398863.
Addisu D, Melkie A, Biru S. Prevalence of Preterm Premature Rupture of Membrane and Its Associated Factors among Pregnant Women Admitted in Debre Tabor General Hospital, North West Ethiopia: Institutional-Based Cross-Sectional Study. Obstet Gynecol Int. 2020 May 14;2020:4034680. doi: 10.1155/2020/4034680. PMID: 32508927; PMCID: PMC7244979.
Pintucci A, Meregalli V, Colombo P, Fiorilli A. Premature rupture of membranes at term in low risk women: how long should we wait in the "latent phase"? J Perinat Med. 2014 Mar;42(2):189-96. doi: 10.1515/jpm-2013-0017. PMID: 24259235.

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