At this time, amniotomy was performed in anticipation of labor progression, but her cervical os was still 5cm with no remarkable progression at 10:00 AM. At 10:30 AM, her blood fibrinogen level increased to 112mg/dL, and labor progressed rapidly. To reduce the amount of hemorrhaging, 1000mg of the antifibrinolytic agent tranexamic acid and 6g of fibrinogen concentrate were administered immediately before delivery. At 11:47 AM, a dead fetus and placenta, together with 900g of blood and gelosis, were extracted. Oxytocin was administered, and bimanual compression of her uterus was performed. Because slight uterine atony was noted, her uterus was packed with gauze to prevent additional bleeding. No birth canal injury was seen. Her blood fibrinogen level at 2:00 PM was 326mg/dL, and DIC was dissolved quickly with no subsequent abnormal hemorrhaging.