随着社会的发展 ,人民生活水平的不断提高 ,贫血患者中特别是在城市人口中 ,单纯由营养不良引起的贫血逐年减少 ,而由于外界环境因素引起的机体造血机制障碍所致贫血可能增多。当归、川芎、熟地和白芍均为传统医药中常用的补血调血药 ,由此 4味药组成”四物汤”更是其代表方剂 With the development of society, the living standards of the people have been continuously improved. Among the anemic patients, especially among the urban population, the anemia caused by malnutrition is decreasing year by year, and the anemia caused by the dysfunction of the body’s hematopoietic system due to external environmental factors may increase. Angelica sinensis, Rhizoma Chuanxiong, Rehmannia glutinosa and Radix Paeoniae Alba are traditional blood and blood transfusion medicines used in traditional medicine. Therefore, the composition of four herbs, “Siwu Tang”, is a representative formula.