Leukemia is not an infectious disease and is not transmitted through needles. Leukemia belongs to the malignant neoplastic diseases of the blood system, and the cause of the disease is still not very clear, and its occurrence is related to biological factors, physical factors, chemical factors, genetic factors and so on. Leukemia is not an infectious disease, and normal people will not get sick from contact with blood, secretions, excretions, etc. of leukemia patients. The contact between husband and wife in a family can be very close, but if one person develops leukemia, his or her spouse is no more likely to develop leukemia than anyone else. Leukemia as a whole has a poor prognosis, so once diagnosed, treatment needs to be standardized. Medications include cytarabine and decitabine. Because it is not an infectious disease, there is no need to worry about being infected. Specific diagnosis and treatment should be under the guidance of a physician.