Leukemia is the most common malignant disease of the blood system. As leukemia cells lose their normal ability to proliferate and differentiate and proliferate in large numbers in the bone marrow in a disorderly manner, leading to the destruction of normal hematopoietic function, the patient develops a series of symptoms, such as anemia, infections, hemorrhage, and organ infiltration. There are two types of leukemia labs that are often looked at, one is the routine blood labs; the other is the bone marrow examination report card. In routine blood labs, the patient’s leukemia cells are elevated, and there are also normal or reduced cases, but they are relatively rare. At the same time, almost all patients will have varying degrees of anemia and also thrombocytopenia, which is the routine blood laboratory report form for leukemia patients. It is common for the bone marrow report card to show that the bone marrow will have more than 20% or more primitive cells plus premature granulocytes. The higher the blood white blood cell count, the more serious the disease is often indicated, especially white blood cells > 100 × 10 * 9 / L. After chemotherapy after remission, often the proportion of primitive cells decreased significantly, if less than 5% to reach the bone marrow in complete remission.