What Causes a White Blood Cell Count Over 20,000?
High white blood cell counts may be caused by bacterial or viral infections, allergies and parasitic infections, blood disorders, and other reasons. The normal range for white blood cells is 4~10×10⁹. White blood cells primarily include neutrophils, lymphocytes, monocytes, eosinophils, and basophils.
1. Bacterial or Viral Infections: After bacterial infections, neutrophils migrate, causing an increase in white blood cell counts. In viral infections, lymphocytes or monocytes primarily increase.
2. Allergies and Parasitic Infections: Eosinophilia can occur in cases of allergies, parasitic infections, etc.
3. Blood Disorders: Blood disorders such as acute leukemia and chronic leukemia can lead to an increase in white blood cell counts. Specifically, bone marrow aspiration is needed for a definitive diagnosis.
A white blood cell count exceeding 20,000 may have other causes, such as appendicitis. If you feel unwell, it is recommended to seek medical attention promptly. Based on the current white blood cell count, we must also consider clinical symptoms and radiological imaging examinations and complete the disease diagnosis under the guidance of a doctor.
