近10年来先天性疾病及医学遗传学在西方国家中越来越受到重视,Galjaard认为,这是由于下列各种原因造成的: 1.先天性疾病不仅已成为婴儿死亡的主要原因,而且在婴儿中的发病率相当高; 2.由于家庭小型化,人们对妊娠和出生先天性疾病患儿的风险及其预防的可能性,要求有更广泛的了解; In the past 10 years, congenital diseases and medical genetics have gained more and more attention in western countries. Galjaard argues that this is due to the following reasons: 1. Congenital diseases have not only become the major cause of infant mortality but also have been reported in infants Of the incidence rate is very high; 2 due to family miniaturization, people in pregnancy and birth congenital diseases in children with the risk and the possibility of prevention requires a more extensive understanding;