When leukemia is completely cured, survival can be greatly prolonged and not even very different from that of a healthy person. However, the life expectancy of leukemia patients after relapse will be shortened. There are many kinds of leukemia, and the treatment process and treatment effect of different kinds of leukemia are different. At this stage, the curable leukemias in the clinic are acute promyelocytic leukemia and childhood low-risk acute lymphoblastic leukemia. At present, these two types of leukemia can be cured by chemotherapy, and the cure rate can be more than 90%, and the life expectancy of the patients is not much different from that of the general public if they are completely cured without recurrence. After other types of leukemia are treated by chemotherapy, usually no obvious symptoms will appear in the first few years, but there is a 50% risk of relapse and progression of the disease, which may cause anemia, infection, bleeding and other symptoms, and may easily endanger the life of the patient. Consult a medical professional for specific treatment.