Sometimes a woman’s waters break before labour starts. This happens in about one in 20 pregnancies and is known as pre-labour rupture of the membranes (or PROM). When this happens, about nine out of 10 women will go into labour naturally within twenty-four hours.
If your water breaks before Labour starts (PROM)
![If your waters break before labour starts (PROM) icon](https://www.esht.nhs.uk/wp-content/themes/esht2017/img/file-icon-32.png)