Elevated WBC counts, also known as leukocytosis, can be caused by various factors: - Infections: Bacterial, viral, fungal, or parasitic infections can lead to increased WBC counts. - Inflammatory Conditions: Conditions like juvenile idiopathic arthritis and Kawasaki disease can cause elevated WBC counts. - Stress: Physical or emotional stress can temporarily elevate WBC counts. - Medications: Certain medications, such as corticosteroids, can increase WBC counts. - Bone Marrow Disorders: Conditions like leukemia can lead to significantly higher WBC counts.
