What does it mean when eosinophil levels are elevated?

Jun 22, 2021 Source: Cainiu Health
Disease description:

Two days ago, during a routine health check-up at the hospital, I was told that my eosinophil count was elevated. This has never occurred in previous check-ups—could you please explain what this means?

Doctor's answer (1)
Dr. Zhao Lianli
Hello, an elevated eosinophil count in the blood is clinically significant when it exceeds a certain threshold. Eosinophilia can be classified as reactive, secondary, clonal, or idiopathic. Different underlying causes of eosinophilia may present with distinct clinical manifestations. For example, eosinophilia caused by parasitic infection may manifest as nausea, vomiting, and muscle pain. I hope this information is helpful to you. Wishing you good health!