１临床资料患者，２３岁，已婚。因阴道大出血２．５ｈ伴头昏乏力于１９９６年６月３日２０时急诊入院。患者１９９５年１月足月分娩一女婴，经过顺利。同年１２月在乡卫生院放环，放环后一直有阴道淋漓出血。１９９６年４月取环时发现子宫增大如孕３个月，诊刮病理报告示... 1 Clinical data Patient, 23 years old, married. He was admitted to the hospital by emergency at 20:00 on June 3, 1996 due to severe vaginal bleeding with 2.5 hours of dizziness and fatigue. The patient had a successful delivery of a baby girl in full-term January 1995. In December of the same year, she was put on a ring in a township hospital. After the ring was removed, there was always bleeding from the vagina. In April 1996, when the ring was removed, it was found that the uterus was enlarged as if it was pregnant for 3 months.