The causes of leukemia are not clear for the time being, but radiation, chemical factors, hereditary factors, blood diseases and other diseases have some connection with the development of leukemia. 1. Radiation: People who receive high-dose radiotherapy for a long period of time may be endangered by acute leukemia because of radiation. 2. Chemical factors: exposure to benzene, a carcinogen, can also lead to an increased risk of leukemia. 3. Genetic factors: leukemia patients may have chromosomal aberrations, so there is also a link between the disease and heredity. 4. Blood diseases: Lymphoma, myelodysplastic syndromes and other blood diseases may be transformed into leukemia in later stages of development. 5. Other diseases: viral infections, trisomy 21 and other diseases may also cause leukemia. If you want to reduce the incidence of leukemia, you have to stay away from all kinds of controllable risk factors that can cause the disease, and consult the doctor in time if you have any discomfort, so as not to delay or aggravate your condition.