Version August 2025
| Idiopathic (acute or chronic) |
| Tropical filarial eosinophilia |
| Parasitic infections |
| Allergic bronchopulmonary aspergillosis |
| Eosinophilic granulomatosis with polyangiitis (Churg-Strauss) |
| Hypereosinophilic syndrome |
| Acquired immunodeficiency syndrome |
| Drugs (eg, aspirin, nonsteroidal antiinflammatory drugs, nitrofurantoin, sulfonamides, ampicillin, cocaine) |
