Eosinophiluria is the abnormal presence of eosinophils in the urine. It can be measured by detecting levels of eosinophil cationic protein.^[1]

It can be associated with a wide variety of conditions, including:

• Kidney disorders such as acute interstitial nephritis^[2] and acute kidney injury from cholesterol embolism
• Eosinophilic granulomatosis with polyangiitis^[3]

Eosinophiluria (>5% of urine leukocytes ) is a common finding (~90%) in antibiotic-induced allergic nephritis, however, lymphocytes predominate in allergic interstitial nephritis induced by NSAIDs. Eosinophiluria is a feature of atheroembolic ARF.^{[citation needed]}

• Clinical correlates of eosinophiluria

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