We have reviewed 20 cases of primary death out of 1080 cases (1.8 %) in which supravaginal amputation of the uterus, abdominal pan-hysterectomy or vaginal pan-hysterectomy was performed. Peritonitis was found to be the most frequent cause of death and we suppose that this may be reasonably attributed to the specific social and economic conditions at that time. Direct after the World War II, the cause of death, in other cases except one, were shock, acute cardiac weakness, embolism, pulmonary collapse, metastasis of malignant growth etc. In one case, the cause of death was a tranfusion accident. On reviewing these cases, most of the patients succumbed nearly within one week after operation. Our results have shown that preoperative careful examination such as heart function test, and digitalization cannot always protect the patient from death. The intimate interrelationship between the hemoglobin contents (64% on the average) and prognosis was also confirmed.