Premature rupture of membranes (PROM) is the rupture of the membranes prior to the onset of labour.
Premature rupture of membranes (PROM) refers to a patient who is beyond 37 weeks' gestation and has presented with rupture of membranes (ROM) prior to the onset of labor. Preterm premature rupture of membranes (PPROM) is ROM prior to 37 weeks' gestation. Spontaneous premature rupture of the membranes (SPROM) is ROM after or with the onset of labor. Prolonged ROM is any ROM that persists for more than 24 hours and prior to the onset of labor.