Dr. Peter KrugerUrogynecology & Surgery
Patient Resource

Bladder Diary

How to keep a bladder diary to help evaluate urinary symptoms.

What is a Bladder Diary?

A bladder diary is a structured record of your fluid intake, voiding frequency, urine volumes, and episodes of urgency or leakage over several days. It provides objective information that assists in diagnosis and guides treatment planning for urinary symptoms.

Why Keep a Bladder Diary?

A bladder diary helps your doctor understand:

  • How much and what types of fluid you drink
  • How often you urinate during the day and night
  • How much urine your bladder holds
  • When and how much leakage occurs
  • What activities trigger leakage
  • How often you experience urgency

This information is more reliable than recall alone and helps identify patterns that can guide treatment.

How to Complete Your Diary

Record the following over 3 consecutive days (ideally including one weekend day):

Common fluid container volumes for reference when estimating intake

What to Record

  1. Time: Note the time for every entry
  2. Fluid intake: What you drank and how much (measure in mL if possible)
  3. Voiding: Each time you urinate, measure the volume (a measuring jug in the toilet works well)
  4. Urgency: Rate the urgency on a scale of 0-3 (0 = no urgency, 3 = almost leaked)
  5. Leakage episodes: Note any leakage and what you were doing when it occurred (e.g., coughing, rushing to toilet)
  6. Pad use: How many pads changed and how wet they were

Tips for Accuracy

  • Use a measuring jug to measure urine volumes
  • Record entries as they happen rather than from memory
  • Include overnight entries
  • Note caffeine, alcohol, and carbonated drinks specifically

Normal Bladder Function

For reference, normal bladder parameters are:

  • Fluid intake: 1.5-2 liters per day
  • Voiding frequency: 4-7 times during the day
  • Nighttime voiding: 0-1 time
  • Average void volume: 200-400 mL
  • Maximum void volume: 400-600 mL
  • Leakage: None

Sample Completed Diary

The following is an example of a completed bladder diary for reference:

A completed sample bladder diary showing fluid intake, voiding times, volumes, and leakage episodes

Bring Your Diary

Please bring your completed bladder diary to your appointment. It is one of the most useful tools in evaluating urinary symptoms.

Illustrations courtesy of the International Urogynecological Association (IUGA) Patient Information Leaflets.