The presence of white blood cells (leukocytes) in the urine. it is often associated with bacterial infections of the urinary tract. pyuria without bacteriuria can be caused by tuberculosis, stones, or cancer.

Pyuria is the condition of urine containing white blood cells or pus. Defined as the presence of 6-10 or more neutrophils per high power field of unspun, voided mid-stream urine, it can be a sign of a bacterial urinary tract infection...