Normal values for white blood cells vary according to age: adults (4-10) × 10⁹/L, children (15-20) × 10⁹/L, infants (11-12) × 10⁹/L, newborns (15-20) × 10⁹ /L. Compared to the normal range mentioned above, leukocyte 25×109/L is an elevated leukocyte value. However, some physiologic causes can also cause elevated white blood cells, such as after activity and eating, emotional stress, exercise, pregnancy, pain, and labor and delivery. Leukocytes 25×10⁹/L are commonly found in inflammation, acute infection, tissue injury, acute blood loss, blood cell destruction, malignant tumors, acute poisoning, and so on. If the above test results, it is recommended to go to the hospital in time, after the doctor’s comprehensive judgment in order to identify the cause of the disease, early formal treatment.