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Published on: 4/28/2025

Which Part of the Body Does the Fluid Come From When Water Breaks?

The fluid comes from the amniotic sac inside your uterus that surrounds and protects your baby.

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Explanation

When your water breaks, the fluid you feel comes from the amniotic sac. This sac is like a little water balloon that holds amniotic fluid, which cushions and protects your baby while you are pregnant. Your uterus is the part of your body where your baby grows, and the amniotic sac is inside it, surrounding the baby with this clear, protective fluid. When the membranes of the sac tear, the fluid flows out through your vagina. This event is what we call “your water breaking.” The fluid is not like other fluids in your body; it is specially made to keep your baby safe and comfortable until it is time for birth. If you ever think that your water has broken, it is a good idea to tell your healthcare provider so they can check on you and your baby.

(References)

  • Beall MH, van den Wijngaard JP, van Gemert MJ, Ross MG. Amniotic fluid water dynamics. Placenta. 2007 Aug-Sep;28(8-9):816-23. doi: 10.1016/j.placenta.2006.11.009. Epub 2007 Jan 23. PMID: 17254633.

  • Fitzsimmons ED, Bajaj T. Embryology, Amniotic Fluid. [Updated 2023 Jul 17]. In: StatPearls [Internet].

  • Dayal S, Jenkins SM, Hong PL. Preterm and Term Prelabor Rupture of Membranes (PPROM and PROM) [Updated 2024 Oct 31]. In: StatPearls [Internet].

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