小儿血液疾病是一类众所关注的疾病。最常见的是营养性缺铁性贫血。在党和政府深切关怀下，患病率明显下降，但其发生仍然较多，尤其医疗保健制度稍有松懈其发生就有可能抬头，是婴幼儿重要营养问题之一，非贫血型铁缺乏症更不在话下；最令人尤其家长焦虑的是性质恶险如血癌等 Pediatric hematological diseases are a group of diseases of common concern. The most common is nutritional iron deficiency anemia. With the deep concern of the party and the government, the prevalence rate has dropped markedly, but its incidence still remains high. In particular, the health care system is slightly lax and its occurrence may rise. It is one of the important nutritional problems for infants and young children. Non-anemic iron deficiency Not to mention; the most worrying parents, especially the nature of the risk of such as leukemia and so on