Low white blood cells should pay attention to the presence of adverse factors such as drug factors, viral infections, blood disorders and immune system disorders, and treat the cause of the disease. Secondly, we should pay attention to protect ourselves from infection in daily diet and clothing. 1. Low leukocytes caused by drugs: such as taking antipyretic and analgesic (ibuprofen) or sulfonamides, leukocytes are low, and should be stopped or changed in time. 2. Viral infections causing leukopenia: If viral infections cause leukopenia, antiviral treatment such as oseltamivir is needed. 3. Hematological diseases: if you find that the red blood cells and platelets are reduced, further examination should be done, the most common is bone marrow biopsy, which is used to identify the presence or absence of blood diseases, such as acute leukemia, aplastic anemia and so on. 4. Immune system disorders: Leukopenia may also be caused by immune system disorders, such as rheumatoid arthritis, which can be treated with drugs such as prednisone. 5. Lifestyle intervention: Patients with low white blood cell count should pay special attention to not eating cold and unclean food in their daily life. Secondly, we should pay attention to the weather changes, timely add clothing for themselves, to reduce their chances of catching a cold, otherwise it is easy to trigger all kinds of inflammatory reactions. During the treatment of low white blood cells, patients should follow the above precautions, and actively cooperate with the doctor’s treatment, so as to restore the normal level as soon as possible.