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大约15%～20%的妊娠在孕早期有自发性流产,其发生多数是随机性的。但习惯性流产(尤其连续二次或多次)对流产夫妇及产科医生都是一个严重的问题,因为他们再次怀孕的成功率较低。 染色体显带技术的应用使微小的染色体异常检出成为可能,并发现一定数量的习惯性流产与双亲之一的
About 15% to 20% of pregnancies have spontaneous abortion in early pregnancy, most of which are random. However, habitual abortion (especially two or more consecutive times) is a serious problem for abortion couples and obstetricians because of their lower success rate of having another pregnancy. The application of chromosome banding technology makes it possible to detect minor chromosomal abnormalities and to detect a certain number of habitual abortions with one of the parents