贫血是儿童常见疾病之一。据国内外调查研究结果表明：儿童贫血以营养性缺铁性贫血为主。缺铁性贫血的好发人群是儿童、青少年最为多见。本病不仅在发展中国家流行，在经济发达国家发病率也比较高，严重贫血可使儿童的身体发育受阻，体力和学习能力下降，记忆力和注意力减退， Anemia is one of the common diseases in children. According to the survey results at home and abroad show that: children with anemia mainly iron deficiency anemia. The incidence of iron deficiency anemia in children, adolescents are the most common. The disease is not only prevalent in developing countries, the incidence rate is also relatively high in economically developed countries, severe anemia can retard the child's physical development, physical and learning ability decreased, memory and attention decline,