Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Pyuria is the presence of pus in the urine, a sign often indicative of a urinary tract infection (UTI). It is characterized by an elevated number of white blood cells in the urine.
5 Must Know Facts For Your Next Test
Pyuria can be detected through a urinalysis where white blood cell count exceeds 10 per high power field.
Common causes of pyuria include bacterial infections like Escherichia coli and Staphylococcus saprophyticus.
Non-infectious conditions such as interstitial nephritis and kidney stones can also cause pyuria.
Symptoms associated with pyuria may include frequent urination, burning sensation during urination, and cloudy urine.
Treatment typically involves antibiotics if the underlying cause is bacterial.