Japanese toilets have come a long way from the early 20th century, when many people in Japan still used "squatters," which were built into the floor. Western toilets became popular after World War II.

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Devices that conceal unwanted noises are the next frontier in advanced toilet technology. Would you like some peaceful birdsong, or perhaps a burst of artillery fire? Donna Burke, who moved to Japan ...

Having conquered its home market, the Japanese toilet-maker Toto is selling more bidets in the United States. Toto’s president says not even tariffs will halt its advance. Toto’s showroom in ...

For more than a hundred years, toilet paper has remained a fixture of modern hygiene—a default solution so widespread it’s rarely questioned. But that dominance is starting to crack, and the challenge ...

Step into any public restroom stall in Japan and you’re likely to be enveloped in a soundscape. No, not that kind. It’s the babble of running water, perhaps peppered with cheerful tweets and birdsong, ...