Methods: The incidence rates of early reproduction inability of chromosome heteromorphism group and normal karyotype group were compared by using G, C-banded chromosome karyotype analysis.

方法：采用G、C显带染色体核型分析等方法，比较染色体异态核型人群和正常核型人群的早期生殖障碍的发生率。

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Conclusion: chromosome abnormality is one of the main causes of amenorrhea. Karyotype analysis of chromosome is absolutely necessary for the diagnosis and treatment of patient with amenorrhea.

结论染色体异常是闭经的主要原因之一，染色体核型分析对闭经患者的诊断和治疗是必要的。

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The incidence rates of reproduction abnormality of chromosome polymorphism group and normal karyotype group have been compared by G-banded chromosome karyotype analysis.

本研究将染色体多态核型人群和正常核型人群分组，进行G显带染色体核型分析，以比较两组人群的生殖异常的发生率。

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