我国每年约有20万～30万肉眼可见的先天畸形儿出生,加上出生数年后才表现出来的缺陷或遗传病,先天残疾儿童总数达80万～120万,约占年出生人口数的4%～6%,出生缺陷已成为重要的人口健康问题,严重影响着出生人口素质。2007—2012年上虞市3家出生缺陷监测医院的分娩数占同期全市总分娩数的82.01%,为掌握上虞市出生缺陷发生现状及变化趋势,探讨减少本地区 About 200,000 to 300,000 people are born with congenital malformations that are visible to the naked eye each year in our country, together with defects or genetic diseases that have been revealed only a few years after birth. The total number of children with congenital disabilities reaches 800,000 to 1,200,000, accounting for about a year of births 4% ~ 6%, birth defects have become an important population health problem, seriously affecting the quality of the birth population. The number of births in 3 birth defect monitoring hospitals in Shangyu during the period from 2007 to 2012 accounted for 82.01% of the total number of deliveries in the whole city in the same period. To understand the status quo and the changing trend of birth defects in Shangyu City,