A high white blood cell count may be due to the following conditions: 1. It is often seen in some bacterial infectious diseases, such as purulent tonsillitis, when the white blood cells are significantly elevated. In bronchopneumonia, leukocytes may also be significantly elevated, or in acute pyelonephritis, with frequent, urgent, and painful urination. 2. High leukocytes may also be seen in acute myocardial infarction or in hemorrhage. 3. High leukocyte counts may also be seen in severe tissue injury, such as in massive burns. When the white blood cell count is high, it is important to analyze the specific problem and to recheck the blood count. In the case of bacterial infection, antibiotics should be used and other symptoms, such as fever and body pain, should be observed.