Maintaining a bladder diary involves several steps: 1. Record Fluid Intake: Note down the types and amounts of fluids consumed throughout the day. 2. Urination Times: Document the exact times you go to the toilet. 3. Amount of Urine: Measure and record the volume of urine passed each time. 4. Leakage Episodes: Note any instances of urinary leakage, including the activity you were doing at the time and the amount of leakage. 5. Urgency: Record any urgent need to urinate, indicating its severity.