Positive F6 gene may present with myeloid leukemia, juvenile acute lymphoblastic leukemia, etc. F6 gene is localized in the nucleus with transcriptional regulation and is an X-linked tumor suppressor gene. 1. Myeloid leukemia: it may be caused by ionizing radiation, lymphoma, myeloma, etc. It may have symptoms such as fatigue, low fever, excessive sweating, etc. It can be treated with targeted therapy as prescribed by doctors, such as hydroxyurea, allopurinol and other targeted drugs. 2. Young acute lymphoblastic leukemia: it may be caused by chromosomal abnormality, genetic abnormality, heredity and other factors, and may have symptoms such as fatigue, weakness, weight loss, etc. It can be treated with rituximab, alemtuzumab and other medicines according to the doctor’s instructions, and it can be treated with surgery such as splenectomy if the condition is serious. Patients with leukemia should pay attention to the cleanliness of the living environment, pay attention to keep warm and prevent catching cold. If they feel unwell, they should consult a doctor in time.