贫血是一种常见的疾病。其发病率报导不一。据WHO1962年记载,世界不同地区妇女贫血发病率为21～80%,北京市孕妇为14.9%(88年),天津医学院附院门诊孕妇贫血率为60.5%(89年),湖北天门县早、中、晚孕妇贫血率为30—90%。少年儿童则为30—50%或更高。由此可见,贫血发病率的情况是:城市比乡村低;富裕地区比贫穷地区 Anemia is a common disease. The incidence of different reports. According to the WHO report in 1962, the prevalence of anemia among women in different regions of the world was 21-80%, while that of pregnant women in Beijing was 14.9% (88 years). The anemia rate of pregnant women in the affiliated hospital of Tianjin Medical College was 60.5% (89 years) , Middle and late pregnancy anemia rate of 30-90%. Children and adolescents are 30-50% or higher. Thus, the incidence of anemia is: the city is lower than the rural areas; wealthy areas than poor areas