染色体异常是引起习惯性流产重要因素之一，国外报导很多。本文目的是调查中国人群中习惯性流产夫妇染色体异常的发生频率和变化方式。 Chromosomal abnormalities are one of the important factors that cause habitual abortion. There are many foreign reports. The purpose of this paper is to investigate the frequency and pattern of chromosomal abnormalities in couples who have been aborted by habitual abortion in the Chinese population.