Precipitate Labor • Refers to a delivery which results after an unusually rapid labour (less than three hours) and culminates in the rapid, spontaneous expulsion of the foetus. Delivery often occurs without the benefit of asepsis. Predisposing factors • A multipara with relaxed pelvic or perineal floor muscles may have anextremely short period of expulsion. • A multipara with unusually strong, forceful contractions. Two to three powerful contractions may cause the baby to appear with considerable rapidity. • Inadequate warning of imminent birth due to absence of painful sensations during labor.