How is nocturia diagnosed?

To help your doctor diagnose nocturia, you can keep a fluid and voiding diary. This is a two-day record of how much you drink, how often you have to go the bathroom and the urine output, any medications you are taking, any urinary tract infections, and any related symptoms. Your doctor will review the diary in order to determine the possible cause(s) of and treatment for the nocturia.

Your doctor may ask you the following questions:

  • When did this condition start?
  • How many times do you need to urinate each night?
  • Is there a large or small volume of urine when you void at night?
  • Has there been a change in urination output (increase or decrease)?
  • How much caffeine do you drink each day, if any?
  • Does frequent urination during the night keep you from getting enough sleep?
  • Do you drink alcoholic beverages? If so, how much each day?
  • Has your diet changed recently?

In addition to reviewing your voiding diary, your doctor may order a urinalysis to examine the urine for infection.

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