From June 1978 to June 1990, there were 41,989 deliveries, 13,396 cesarean sections and 15 emergency obstetric hysterectomies at Taipei Chang Gung Memorial Hospital. The incidence of emergency obstetric hysterectomy is 36/100,000 deliveries. The mean age of patients is 31.7 years old. The indications for hysterectomy were placental disorder (60.0%), uterine atony (26.7%), and uterine rupture (13.3%). The present series showed that 14 cases had total abdominal hysterectomy, while only one case had a subtotal hysterectomy. Total hysterectomy should generally be performed unless maternal instability mandates a more expeditious subtotal hysterectomy. The most common postoperative complication included unknown fever and urinary tract infection. For those four cases of post-cesarean hysterectomy, conservative treatment was tried but failed. All cases presented with hypotension (less than 80/60 mmHg), tachycardia (greater than 100 times/min) and with a mean hemoglobin of 9 mg% during the observation period. In these patients, blood loss, operating time and length of hospitalization was increased when compared with a group of 7 patients undergoing cesarean hysterectomy. In patients with placenta accreta, who are candidates for cesarean hysterectomy, initial hypotension, tachycardia and shock developed during cesarean section. It must be emphasized that conservative aggressive measures to control obstetric hemorrhage remain the mainstay of therapy, but emergency hysterectomy played the life-saving role with which every practitioner of obstetrics must be familiar and keep in mind.