A low fever for more than a month to detect leukemia is a possible scenario. Leukemia is a type of malignant neoplastic disease of blood stem cells, and persistent low fever is one of the common clinical symptoms of leukemia patients, which may be accompanied by progressive anemia, bleeding tendency or bone and joint pain. Therefore, if a low fever for more than a month is detected leukemia this is possible. When suffering from leukemia, the main cause of low fever is infection. This is because when you have leukemia, the leukemia cells proliferate, which affects the proliferation of normal cells. This reduces the number of defensive leukocytes in the patient’s body, making the body’s resistance lower and making it very susceptible to pharyngitis, stomatitis, and perianal infections, which can cause a low fever. Of course the cause of low fever can also be a symptom of leukemia itself, not all of which is caused by infection. Apart from this, a month of low fever is not used as the only diagnostic criterion for leukemia. Because this symptom is not specific, it can also occur in infectious diseases, tuberculosis. Leukemia is diagnosed only through immunological tests, genetic tests, bone marrow aspiration and pathological examination of bone marrow fluid smears. Once diagnosed, patients with leukemia need to start treatment as soon as possible to prevent the condition from worsening. Common treatments include medication, immunotherapy, chemotherapy, radiation therapy and surgery to help relieve the lesions and reduce fever symptoms. During the treatment period, it is also important to manage your life well, to ensure a balanced nutritional intake, regular work and rest, and to protect your skin from bumps and bruises. It is also important to return to the hospital regularly for review and treatment to promote recovery.