Increased bladder sensation is the most troublesome symptom of overactive bladder. In clinical practice, reliable noninvasive evaluation of bladder sensation is needed. This study was designed to determine the reliability of a 24-h sensation-related bladder diary (SR-BD) in women with urinary incontinence including clinically relevant information regarding the bladder sensation. A total of 246 women with urinary incontinence filled out a SR-BD for 3 days. They graded the perception of bladder sensation at each micturition and measured the volume voided. The reliability of the 24-h SR-BD method is preserved, when taking into account the grade of bladder sensation. The 24-h SR-BD, which incorporates bladder sensation at each micturition, not only gives information on sensation-related micturition behavior but also shows good reliability. Grading of bladder sensation does not jeopardize this methodology but on the contrary provides added value, which is clinically relevant.