Question: are pus cells in urine harmful?
Answer: Doctors define a high number as at least 10 white blood cells per cubic millimeter (mm3) of centrifuged urine. Pyuria can cause the urine to look cloudy or as if it contains pus. The presence of pyuria often occurs in a urinary tract infection (UTI). In rare cases, it can be a sign of a complicated UTI or sepsis.