Pyuria
Overview
The presence of white blood cells in urine is referred to as pyuria. This tends to be an indicator of urinary tract infection, though there are several non-infective causes.
Causes of Pyuria
- Infection - urethritis, prostatitis, cystitis, pyelonephritis, tuberculosis
- Neoplasm - renal, bladder, protate
- Inflammation - interstitial nephritis, interstitial cystitis, Kawasaki disease, SLE
- Foreign body - renal calculus, indwelling catheter, ureteric stents
- Polycystic kidney disease
- Pelvic irradiation
- Pregnancy
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