习惯性流产的原因,除母亲生殖器官畸形或在妊娠时患全身性疾病,内分泌紊乱、免疫机制缺陷外,主要是父母或胎儿染色体异常。在习惯性流产夫妇中最常见的染色体异常是染色体易位,其中以 D;D 组及 D;G 组易位最多。4;15号染色体平衡易位国内尚少报道,现报告一家系如下。 Habitual abortion causes, in addition to maternal genital abnormalities or systemic disease in pregnancy, endocrine disorders, defects in the immune mechanism, the main parent or fetus chromosomal abnormalities. Among the habitual abortion couples, the most common chromosomal abnormalities were chromosomal translocations, of which the D, D and D groups had the most translocations. 4; chromosome 15 balance translocations still less reported in China, the report is now a family as follows.