再发妊娠丢失包括自然流产、死产和新生儿早期死亡,对母亲和家庭是很悲伤的事情,其原因常不能确定.他们常找产科和遗传科看病,近年这样的问题已占我们遗传门诊总数的百分之五以上.现已证明,50%以上的自然流产胎儿有染色体异常,而后者又是妊娠丢失的常见原因.妊娠早期流产胎儿染色体异常率高,为61.5%;晚期流产胎儿为30.5%.流产胎儿染色体异常可分数目和结构异 The causes of recurrent pregnancy loss, including spontaneous abortion, stillbirth and early neonatal death, are very sad for mothers and families, and the reasons are often uncertain. They often seek obstetric and genetic diseases, and in recent years such problems have accounted for our genetic out-patient More than 5% of the total number has been proved that more than 50% of spontaneous abortion fetus chromosomal abnormalities, which is a common cause of pregnancy loss in early pregnancy miscarriage fetal chromosomal abnormalities was 61.5%; late abortion fetus 30.5% abortion fetal chromosome abnormalities can be divided into different points and structural differences