White blood cells seen under a microscope from a urine sample.
Pronunciation
/ˌpaɪjʊəˈriːə/
Specialty
Urology
Pyuria is the condition of urine containing white blood cells or pus. Defined as the presence of 6-10 or more neutrophils per high power field of unspun, voided mid-stream urine, it can be a sign of a bacterial urinary tract infection. Pyuria may be present in people with sepsis, or in older people with pneumonia. Others additionally require discoloration, clouding or change in the smell of urine for a pyuria to be present. Without these additional features, there is said to be leukocyturia.
Sterile pyuria[1] is urine which contains white blood cells while appearing sterile by standard culturing techniques. It is often caused by sexually transmitted infections, such as gonorrhea, or viruses which will not grow in bacterial cultures. Sterile pyuria is listed as a side effect from some medications such as paracetamol (acetaminophen). Its occurrence is also associated with certain disease processes, such as Kawasaki disease and genitourinary tuberculosis.[2] However, there are many known causes, including systemic or infectious disease, structural and physiological reasons, intrinsic kidney pathology, or drugs.[2]
^Gilbert J. Wise & Peter N. Schlegel (March 12, 2015). "Sterile Pyuria". N Engl J Med. 372 (11): 1048–1054. doi:10.1056/NEJMra1410052. PMID 25760357.
Pyuria is the condition of urine containing white blood cells or pus. Defined as the presence of 6-10 or more neutrophils per high power field of unspun...
Bacteriuria is the presence of bacteria in urine. Bacteriuria accompanied by symptoms is a urinary tract infection while that without is known as asymptomatic...
(hematuria), protein in the urine (proteinuria), pus cells in the urine (pyuria) or cancer cells in the urine. A 24-hour urine collection used to be used...
and occasional RBC casts Sterile pyuria: white blood cells and no bacteria. About 50% of patients with AIN have pyuria. Nephrotic-range amount of protein...
Glynn RJ, Choodnovskiy I, Lipsitz LA (1994). "Reduction of bacteriuria and pyuria after ingestion of cranberry juice". JAMA: The Journal of the American Medical...
(hypertension), decreased urine output <400 ml/day (oliguria), red blood cell casts, pyuria, and mild to moderate proteinuria. If the condition is allowed to progress...
gallbladder. Urinalysis may show white blood cells and protein in the urine (pyuria and proteinuria) without evidence of bacterial growth. Lumbar puncture may...
pressure (hypertension), and white blood cells in the urine (leucocyturia, pyuria). Some individuals with analgesic nephropathy may also have protein in their...
to have slightly more than males. An increased number of WBCs is termed pyuria or leukocyturia and is associated with infection or inflammation of the...
the cause include a urinalysis (usually normal in testicular torsion). Pyuria and bacteriuria (white blood cells and bacteria in the urine) in patients...
infections (UTI) in the absence of both conventional bacterial growth and pyuria (more than 5 white blood cells per high power field). Episodes are often...
reactions. Urinary infections can be identified including bacteriuria and pyuria. The test for nitrites is a rapid screening method for possible asymptomatic...
include allergic reaction, anemia, neutropenia, elevated transaminases, and pyuria. Overdoses have been associated with hematuria and hyperuricemia. Rifapentine...
non-dysmorphic erythrocytes, modest proteinuria or protein within urine, pyuria or pus within urine, and leukocyte cast indicates acute tubular necrosis...
Rao PL "Porencephalic cyst." Ind Pediatr 2;25:1965. 7. Paul SS, Rao PL "Pyuria in children." Ind Pediatr 2;209:1965. 8. Paul SS, Rao PL "Diaphragmatic...
aquaculture. Hypokalemia, hyponatremia, minimal proteinuria, and sterile pyuria are highly prevalent. Individuals in Mesoamerica often have hyperuricemia...
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