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目的:探讨输精管结扎术后严重少精子致孕的风险。方法:男方,35岁,因双侧输精管结扎术后2年,发现其妻怀孕6 d于2012年3月来院就诊,彩超证实为宫内孕。间隔1周两次精液分析所得活动精子总数分别为0.047×106,0.044×106。流产物亲子鉴定RCP(亲子关系概率)=99.9996%,达到认定标准。结果:妻子所孕胎儿与丈夫存在亲子关系。结论:输精管结扎术后严重少精子症可以使女方受孕,应采取附加避孕措施,应慎重判定亲子关系。
Objective: To investigate the risk of severe oligozoospermia after vasectomy. Method: The man, 35 years old, was found to have been in hospital for 6 days since her pregnancy was 6 days after bilateral vasectomy for 2 years. Color Doppler ultrasound was confirmed as intrauterine pregnancy. The total number of spermatozoa derived from semen analysis twice a week was 0.047 × 106 and 0.044 × 106, respectively. Flow product paternity test RCP (Probability of Parentage) = 99.9996%, to meet the criteria. Results: There was a parent-child relationship between the fetus and the husband. Conclusion: Severe oligospermia after vasectomy can make the woman conceive. Additional contraception should be taken and the relationship between the two children should be judiciously determined.