“…When assessing LUTS in patients, it is essential to use validated questionnaires, such as the IPSS, the OABSS and the QOL index. [1][2][3][4] However, as LUTS comprise various urinary symptoms with diverse basal conditions, the aforementioned questionnaires cannot cover the condition's entire spectrum. 5 To solve this problem, Homma et al developed the CLSS questionnaire, which includes questions regarding 10 important symptoms selected from 25 symptoms defined by the International Continence Society standardization committee: daytime frequency, nocturia, urgency, urgency incontinence, stress incontinence, slow stream, straining, incomplete emptying, bladder pain and urethral pain.…”