Patients with leukemia can have children, but only if the disease is controlled and stable enough to end treatment. In the case of chronic leukemia, such as chronic granulocytic leukemia, long-term treatment with targeted drugs, such as imatinib, dasatinib, nilotinib, etc., is required and cannot be easily stopped, which can have an impact on the child. Therefore, patients with chronic granulocytic leukemia who want to have children must keep the abnormal fusion gene in their body at a very low level before they can try to stop the medication and have children again. In the case of acute leukemia, chemotherapy must be standardized for induction and consolidation to meet the criteria for drug discontinuation before you can have a child.