胎儿先天畸形是我国发病率最高、危害最大的先天缺陷之一,该病是突发的,并非遗传而来,每个孕妇都有生先天性痴呆儿的可能性,我们通过唐氏综合症(又称先天愚型)与神经管畸形筛选来诊断此病。唐氏综合症是一种染色体疾 Fetal congenital malformations is the highest incidence of China, one of the most damaging birth defects, the disease is sudden, not from genetics, each pregnant woman has the possibility of congenital dementia, we through the Down Syndrome Also known as Down’s syndrome) and neural tube defects screening to diagnose the disease. Down’s syndrome is a chromosomal disorder