患者　女 ,2 8岁 ,汉族。婚后 4年曾 3次怀孕均流产。第 1次怀孕在 6 0余天阴道流血自然流产 ,第 2、3次在孕 90余天无原因阴道出血 ,B超检查示胎儿停止生长 ,行人工流产。患者自诉月经周期不规律 ,孕期无药物及射线接触史。患者身高 1.5 5m,体重 45 kg,生长发育正常。夫妇非近 Female patient, 2 8 years old, Han nationality. 4 years after marriage had 3 pregnancy abortion. The first pregnancy vaginal bleeding in more than 60 days spontaneous abortion, the first 2,3 times more than 90 days of pregnancy without vaginal bleeding, B-ultrasound showed that the fetus to stop growing, abortion. Patient self-reported irregular menstrual cycle, pregnancy-free drug and radiation exposure history. Patient height 1.5 5m, weight 45 kg, normal growth and development. The couple is not near