Pus in the urine, and is a sign of inflammation often related to infection.
The presence of pus in the urine; usually an indication of kidney or urinary tract infection.
In medicine, Pyuria refers to urine which contains pus. Defined as the presence of 10 or more neutrophils per high power field of unspun, voided mid-stream urine. It can be sign of a bacterial urinary tract infection.