ABSTRACT
A twenty two-year-old is admitted to the labour ward at 27 weeks’ pregnant. She is complaining of regular painful tightening. She describes having a mucus show the previous night, but denies any history of preterm rupture of membranes. On examination she is distressed and requiring analgesia. Vaginal examination reveals that she is fully dilated with bulging forewaters. She delivers a live female infant that weighs 800 g.
