
What does a white blood cell count of 13,000 mean?
I have been feeling unwell recently and went to the hospital for a checkup. The result showed that my white blood cell count is 13,000. What does this mean?

A white blood cell count of 13,000/μL is a blood test result indicating that the number of white blood cells in the blood has exceeded the normal range. Specifically, this value is higher than the normal adult white blood cell range of (4.0–10.0) × 10^9/L, as well as the normal pediatric white blood cell range of (5.0–12.0) × 10^9/L.
White blood cells are an important part of the body's immune system, and their main function is to help the body fight off invading pathogens such as bacteria and viruses. Therefore, an abnormally high white blood cell count is often associated with infections, inflammation, or certain hematologic disorders.
When the white blood cell count is 13,000/μL, it may indicate the presence of an infection or inflammation, or a possible blood disorder. At this time, the patient should seek medical attention promptly for further examination.