Rupture of (Fetal) Membranes (ROM) is the term used to describe breaking of the amniotic sac. Normally this occurs at full term at the onset of labor. This is
colloquially known as “breaking water.”

Premature rupture of membranes (PROM) is defined as spontaneous rupture of membranes before the onset of actual uterine contractions and is one of the most
common diagnostic problems in contemporary obstetric practice. Premature rupture of membranes occurs in many pregnant women and can occur at any gestational

Preterm PROM (PPROM) is defined as PROM before 37 weeks and is associated with 30-40% of preterm deliveries and is the leading identifiable cause of preterm
delivery. It affects 3% of all pregnancies and occurs in approximately 150,000 pregnancies yearly in the United States alone.1,2,3