１病例报告患者，女，４３岁。于１９８０年因产后半年在当地上一高支撑环，上环半年后怀孕，１９８１年分娩一女婴。当时未见有环排出，以后行Ｂ超检查，未见有环。１９８２年在当地又上一宫形环，１９８６年分娩一女婴，产时未见有环排出。１９８７年行输卵管结扎术，以... 1 case report patient, female, 43 years old. In 1980, a high supportive ring was set up on the ground in the first half of post-natal period. She was pregnant half a year later and gave birth to a baby girl in 1981. At that time no ring discharge, after the line B-ultrasound, no ring. In 1982, there was a ring in the palace again. In 1986, a baby girl was delivered and no ring was discharged during birth. Tubal ligation in 1987 to ...