The yellow-red-black bladder diary: red-yellow-black is not just for wounds.

The Red-Yellow-Black (RYB) wound classification system was introduced to the US in the late 1980s for the purpose of simplifying wound assessment and guiding treatment. Although the color system was found to have limitations for wound care, the colors (in revised order) may be useful for a bladder diary. Colored pencils are used to record fluid intake and voided output. For fluid intake, yellow signifies nonirritants (water); red, low bladder irritants (alcoholic, artificially sweetened, carbonated, or citrus beverages); and black, high bladder irritants (caffeinated beverages). For voided output, yellow denotes continent voids and red, incontinent voids. Output quantity is measured using a commode "hat". The completed diary allows the practitioner to tabulate the colored daily rows and quickly assess progress weekly or monthly and provide appropriate treatment/advice. The YRB diary was used successfully by a 78-year old woman with urge incontinence without evidence of stress incontinence. Modifications to the YRB diary can be made when additional data need to be collected. Studies to evaluate optimal usage criteria of bladder diaries are needed.