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Diseases reference index «Urine output - decreased»

Decreased urine output is defined as producing less than 500 milliliters of urine in 24 hours.


Although a significant decrease in urine output may indicate a serious, even life-threatening condition, adequate urine output can be restored with prompt medical treatment.


  • Dehydration due to vomiting, diarrhea, or fever, with a lack of adequate fluid intake
  • Total urinary tract obstruction, such as from an enlarged prostate
  • Severe infection or any other medical condition leading to shock
  • Use of certain medications such as anticholinergics, methotrexate, and diuretics

Home Care

Follow prescribed fluid regimens and measure urine output as directed.

When to Contact a Medical Professional

Contact your health care provider if you have:

  • A noticeable and consistent decrease in urine output
  • Vomiting , diarrhea, or high fever and are unable to replace fluids by mouth
  • A decrease in urine output associated with dizziness, lightheadedness, or rapid pulse

What to Expect at Your Office Visit

The health care provider will perform a physical exam and ask questions about your medical history and symptoms, including:

  • Time pattern
    • When did this begin?
    • Did it occur suddenly?
    • Has it rapidly become worse?
  • Quality
    • How much do you drink each day?
    • Does drinking more increase your urine output?
    • How much urine do you produce each day?
    • What color is the urine?
  • Aggravating factors
    • Has there been fever?
    • Has there been diarrhea?
    • Has there been vomiting? With or without nausea?
    • Is thirst decreased?
    • What other symptoms do you have?
  • Other
    • What medications do you take?
    • Do you have any allergies?
    • Do you have access to adequate fluids?
  • Medical history
    • Have you had any recent injuries such as burns?
    • Have you been sick?
    • Do you have a history of a problem with your kidneys or bladder?

Tests that may be done include:

  • Blood studies to monitor electrolytes and kidney function
  • CT (cat) scan of the abdomen
  • Intravenous pyelogram (IVP)
  • Renal scan
  • Abdominal ultrasound
  • Urine tests, including tests for infection

Alternative Names


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