Pyuria

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

1. Pyuria can be detected through a urinalysis where white blood cell count exceeds 10 per high power field.
2. Common causes of pyuria include bacterial infections like Escherichia coli and Staphylococcus saprophyticus.
3. Non-infectious conditions such as interstitial nephritis and kidney stones can also cause pyuria.
4. Symptoms associated with pyuria may include frequent urination, burning sensation during urination, and cloudy urine.
5. Treatment typically involves antibiotics if the underlying cause is bacterial.

Review Questions

• What condition is indicated by the presence of pus in the urine?
• Which types of bacteria are commonly associated with causing pyuria?
• Can non-infectious conditions cause pyuria? Provide examples.

Related terms

Urinalysis:

A test that evaluates urine for signs of disease or infection.

Bacteriuria: The presence of bacteria in the urine.

Cystitis:

Inflammation of the bladder often caused by a bacterial infection.