The difference between common fever and leukemia fever is mainly reflected in the etiology, clinical manifestations, treatment effects and other aspects. 1. Etiology: common fever can be caused by bacterial infection after cold and exertion, the most common is respiratory infection; the etiology of leukemia fever is related to the proliferation of leukemia cells, secondary infection, bone marrow suppression leading to granulocyte deficiency, and so on. 2. Clinical manifestations: common fever is often accompanied by chills, nasal congestion, cough, runny nose and other symptoms, which can be improved after a short period of time and are not easy to recur; leukemia fever is accompanied by anemia, hemorrhage, enlarged lymph nodes, liver and spleen enlargement, etc. Usually, fever lasts for a long period of time and is easy to recur. 3. Treatment effect: common fever can be treated with antibiotics such as cephalosporin and penicillin, which are usually more effective; leukemia fever needs to be treated according to the cause of the disease, such as chemotherapy (cytarabine, etc.), hematopoietic stem cell transplantation, etc., and the prognosis varies a lot, so it is necessary to consult a doctor as early as possible. Based on the above factors, we can distinguish ordinary fever from leukemia fever. If you have leukemia fever symptoms, you should pay great attention to it, consult a doctor in time, complete the examination, and actively cooperate with the doctor for treatment.