染色体异常是习惯性流产的重要原因之一。在习惯性流产患者中 ,平衡易位最为常见。易位携带者在婚后易引起流产 ,死产、新生儿畸形或智力低下儿等生育疾患 ,有的类型分娩畸形儿和智力低下的机率很高 ,可达 10 0 % [1] 。防止染色体病患儿的出生 ,检出携带者和进行宫内诊断在我 Chromosomal abnormalities is one of the important causes of habitual abortion. In habitual abortion patients, the most common balance of translocation. Translocation carriers in marriage likely to cause miscarriage, stillbirth, neonatal malformations or mental retardation and other childbirth disorders, and some types of delivery malformations children and mental retardation is very high, up to 10% [1]. Prevent the birth of a child with chromosomal disease, detect carriers and perform intrauterine diagnosis in me