目的探讨婴幼儿营养不良的发病因素。方法收集近3年来本院儿科住院的2岁以下营养不良儿111例,分析其发病原因。结果绝大多数患儿都存在喂养不当,疾病也是引起本病的一个主要原因,母乳喂养者患营养不良病情较轻,发病地区以农村为多。结论营养不良病因以喂养不当为主,提倡母乳喂养、科学育儿是非常重要的,特别应加强农村地区的宣教工作。 Objective To investigate the incidence of malnutrition in infants and young children. Methods A total of 111 malnourished children under 2 years of age hospitalized in our hospital during the past 3 years were collected and their causes were analyzed. The results of the vast majority of children are mis-feeding, the disease is also caused by a major cause of this disease, breastfeeding patients suffering from mild malnutrition, the incidence of more rural areas. Conclusion The main cause of malnutrition is improper feeding. It is very important to promote breastfeeding and scientific childcare. In particular, missionary work in rural areas should be strengthened.