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Urination - excessive volume

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Female urinary tract

Female urinary tract

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Male urinary tract

Urination - excessive volume

Definition:

Polyuria is the release of abnormally large amounts (for an adult, at least 2.5 liters per day) of urine.

Alternative Names:
Polyuria
Considerations:

This is a fairly common symptom which is often noticed when it occurs at night.

Common Causes:

Too much fluid intake, particularly fluids containing caffeine or alcohol
Too much salt or glucose (if diabetic)
Drug use, especially diuretics
Diabetes (both diabetes insipidus and diabetes mellitus)
Psychogenic polydipsia, most common in women over age 30
Renal failure
Sickle cell anemia
Radiographic tests that use a contrast media
- Urine volume will increase for up to 24 hours following the dose

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