How is pyuria diagnosed and treated?

Pyuria is the term used to indicate the presence of white blood cells in the urine. The most cause is a urinary tract infection, such as a bladder or kidney infection. Inflammation in the kidney known as nephritis or in the bladder wall (interstitial cystitis) also can lead to pyuria. Bladder and kidney infections are treated with antibiotics. Inflammation without infection requires additional testing to determine the best treatment approach.