The treatment of mild anemia includes the following aspects: 1. Etiological treatment is the key to anemia treatment. All anemia should be treated on the basis of finding out the cause, so as to treat both the symptoms and root causes and finally cure it. 2. Supplement hematopoietic elements or hematopoietic factors needed for hematopoiesis. If it is anemia caused by lack of hematopoietic components or hematopoietic factors, it can achieve good curative effect after reasonable supplementation. For example, patients with iron deficiency anemia can quickly improve their condition after iron supplementation. 3. Hematopoietic growth factors and drugs that stimulate hematopoiesis, such as patients with renal anemia, are mainly due to the decrease in the biosynthesis of erythropoietin, which is the indication for the treatment of erythropoietin. After treatment with erythropoietin, the patient's renal anemia can be corrected. 4. The application of immunosuppressants is mainly suitable for anemia with immune-related pathogenesis. For example, glucocorticoid is the main drug to treat autoimmune hemolytic anemia. Anemia can be improved in most patients with autoimmune hemolytic anemia after glucocorticoid treatment.