A child’s white blood cells of 39.25 x 10^9/L is a greater degree of elevation and can indicate problems such as infections or blood disorders. The normal range of a child’s white blood cells is (5~12) x 10^9/L. Above 12 x 10^9/L, we can call the white blood cells elevated. Therefore, the white blood cell 39.25×10^9/L has exceeded the normal value to a large extent, at this time we need to pay extra attention to whether there are infections or blood diseases, but also can not be judged by this indicator alone, it is best to refer to a professional doctor. Severe elevation of white blood cells in young children is usually seen in sepsis, sepsis, severe pneumonia, acute leukemia in children. When the degree of white blood cell elevation is large, it is necessary to combine the child’s clinical manifestations and auxiliary examination to clarify whether the elevation is brought about by an infection or a blood system disease, and timely diagnosis and treatment can ensure a good prognosis. In summary, the child’s leukocytes 39.25×10^9/L suggests that the leukocytes are elevated to a large extent, and timely consultation is recommended.