Pyuria

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Evidence Based Medicine
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Clinical Trials
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Guidelines / Policies / Govt
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Books
Books on Pyuria
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Commentary
Blogs on Pyuria
Definitions
Definitions of Pyuria
Patient Resources / Community
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Healthcare Provider Resources
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Continuing Medical Education (CME)
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International
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Experimental / Informatics
List of terms related to Pyuria

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

To view a comprehensive algorithm of common findings of urine composition and urine output, click here

Overview

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 a sign of a bacterial urinary tract infection. Pyuria may be present in the septic patient, or in an older patient with pneumonia.

Sterile pyuria is urine which contains white blood cells (pus) while appearing sterile by standard culture techniques. Sterile pyuria is listed as a side-effect from some medications such as paracetamol (acetaminophen).

Causes

In Alphabetical Order

• Colpitis
• Cystitis
• Epididymitis
• Genitourinary tuberculosis
• Interstitial Nephritis
• Neoplasm
• Prostitis
• Pyelonephritis
• Renal Carcinoma
• Renal papillary necrosis
• Urethritis
• Vaginitis
• Vulvitis

Causes by Organ System

Cardiovascular	No underlying causes
Chemical/Poisoning	No underlying causes
Dental	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	Thalidomide
Ear Nose Throat	No underlying causes
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic	No underlying causes
Genetic	No underlying causes
Hematologic	No underlying causes
Iatrogenic	No underlying causes
Infectious Disease	No underlying causes
Musculoskeletal/Orthopedic	No underlying causes
Neurologic	No underlying causes
Nutritional/Metabolic	No underlying causes
Obstetric/Gynecologic	No underlying causes
Oncologic	No underlying causes
Ophthalmologic	No underlying causes
Overdose/Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal/Electrolyte	No underlying causes
Rheumatology/Immunology/Allergy	No underlying causes
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Miscellaneous	No underlying causes