The normal range of white blood cell count is (4 to 10) × 10⁹/L. An absolute value of 50 × 10⁹/L suggests a significant elevation of white blood cells, which may be associated with infection, tissue injury, acute hemorrhage, and certain blood disorders. Different causes of elevated white blood cells are treated differently. 1. Infection: When a patient has an infection, the body’s white blood cells will increase significantly as a defense against microbial invasion. Such patients can be treated with anti-infective drugs, including levofloxacin. 2. Tissue damage: when patients have serious trauma, after major surgery or extensive burns, the number of white blood cells in the body will also increase, at this time you need to actively deal with the original disease, while intravenous infusion of anti-inflammatory drugs to fight inflammation, oral painkillers (ibuprofen) to relieve pain symptoms. 3. Hematological diseases: most patients with leukemia, true erythrocytosis, myelofibrosis and primary thrombocythemia can have increased white blood cells, such patients should be further improved by bone marrow aspiration + biopsy, to determine the cause and treatment, such as acute myeloid leukemia to be a cytarabine, desmethoxylated erythromycin, and other drugs such as chemotherapy. 4. Patients with acute hemorrhage and acute toxicity may also have high white blood cell counts. When the primary disease is controlled, such as plasma replacement, the white blood cell count will usually drop to the normal range. Warm reminder: when patients find elevated white blood cells in routine blood tests, they should further understand the cause of the disease and follow the doctor’s instructions for treatment.