Survey of electric bidet toilet use among community dwelling Japanese people and correlates for an itch on the anus.

Objectives: We conducted a survey to investigate the use of bidet toilets among community dwelling Japanese people and explored the correlates for an itch on the anus.

Methods: A questionnaire-based survey was conducted among a convenience sample of individuals, who were derived from outpatients and employees of Kameda Medical Center, and students and employees of two technical colleges.

Results: A total of 4,963 respondents were evaluated in this study, 55 % of whom used bidet toilets either before or after defecation, and at least 30 % of bidet users washed the anus before defecation, partly to aid defecation.