肥胖是由于长期能量摄入过多,超过机体能量消耗,体内多余能量转化为脂肪,并过度积聚而引起的营养代谢失衡性疾病[1]。儿童肥胖问题不仅影响儿童期健康和心理精神发育,而且直接影响到成年后的健康、社会功能和生命质量。为了解启东市学龄前儿童肥胖状况,现对2010～2012年入园体检的3 417名2～4岁儿童进行调查分析,结果报道如下。1对象与方法1.1研究对象2010～2012年8月在儿童保健门 Obesity is due to long-term energy intake is too much, more than the body’s energy consumption, the body’s excess energy into fat, and excessive accumulation of nutrients and metabolic imbalance caused by disease [1]. The issue of childhood obesity not only affects childhood health and mental development, but also directly affects adulthood’s health, social functioning and quality of life. To understand the status of obesity in preschool children in Qidong, 3 417 children aged 2 to 4 years old admitted to the hospital from 2010 to 2012 are surveyed and the results are reported below. 1 objects and methods 1.1 research object 2010 ~ August 2012 in child health door