INTRODUCTION
Electric toilet seats with water spray (bidets) were developed in Japan
and the use of bidets is spreading throughout the world. However, it has
not been made clear on whether the use of bidets has any effect on the
hygiene of hands. Studies on the effectiveness of bidets in the
prevention of microbial contamination of hand after defecation have been
done only with in vitro experiments.1Therefore, this experiment examined the microbial contamination of the
hands of 32 volunteers after defecation with and without the use of
bidets.