The time from the onset of leukemia to the obvious aggravation of the disease is not certain, and is related to the physical quality of each person, the type of leukemia, and whether or not the treatment is standardized. 1. The rate of progression of the disease varies according to the physical quality of each person. Those who suffer from basic diseases (high blood pressure, diabetes, etc.) and low immunity have relatively rapid progression of the disease. 2. Different types of diseases: acute leukemia has a rapid onset, rapid progression and severe condition. Without special treatment, the average survival period is only about 3 months, and the shorter ones even die after a few days of diagnosis. On the other hand, chronic leukemia, such as chronic granulocytic leukemia, can be divided into chronic, accelerated and acute phases according to the development of the disease, and the disease generally progresses relatively slowly. 3. After diagnosis of leukemia, as long as the patient cooperates with the treatment, both acute leukemia and chronic leukemia patients can have a chance to achieve long-term remission. If leukemia is diagnosed, the prognosis can be improved by standardized treatment under the guidance of a doctor as soon as possible.