A short history of the bidet

France: a piece of furniture before it was plumbing

The word is French and unglamorous: bidet was an old French word for a small horse, and the device — a basin on a stand that the user straddled — took the name from the posture. Written references date to the early eighteenth century, when the bidet was a movable item of bedroom furniture in affluent French homes, filled and emptied by hand like the washstand beside it. As indoor plumbing spread through the nineteenth and twentieth centuries, the bidet became a fixed porcelain fixture, plumbed beside the toilet, and a standard expectation in bathrooms across France, Italy, Spain, Portugal, and much of Latin America.

Two consequences of that origin still shape the market. First, in those regions “bidet” still primarily means the standalone fixture (form 7 in our taxonomy), which is why European listings confuse North American shoppers. Second, the fixture tradition normalised water washing as ordinary hygiene rather than a medical or luxury practice — a cultural baseline North America never acquired.

Japan: the seat reinvents the fixture

The modern bidet seat is a Japanese answer to a Japanese constraint. Post-war Japanese homes adopted Western-style seated toilets, but the European standalone fixture demanded floor space that compact Japanese bathrooms did not have. The engineering response was to put the wash function into the seat. TOTO — founded in 1917 and already Japan's dominant sanitaryware maker — launched the Washlet in 1980, adding heated water, a heated seat, and later the features this desk now scores as a category: nozzle self-cleaning, deodorisers, dryers, and systems such as PREMIST and EWATER+, defined in our glossary.

Adoption in Japan was driven by retail exposure, housing-industry standardisation, and eventually near-default inclusion in new homes and hotels; industry surveys by Japanese manufacturers and the national statistics they cite have for years reported Washlet-type seats in a large majority of Japanese households. The desk prints that as a direction, not a statistic: the exact percentages come from industry sources with an interest in the number. What is not in doubt is the visible fact any traveller can check — in Japan, the electronic bidet seat is the default toilet in homes, hotels, and public buildings, and a plain seat is the exception.

The shattaf: the sprayer tradition

Across the Middle East, North Africa, and much of South and Southeast Asia, the dominant form is neither fixture nor seat but the handheld sprayer — called a shattaf in Arabic-speaking countries and known in English-language plumbing trade as a Muslim shower or health faucet. Its roots are practical and religious together: Islamic practice prescribes washing with water after toileting (istinja), performed within the broader ritual washing of wudu, and a plumbed sprayer beside the toilet makes that practice straightforward in a modern bathroom.

The sprayer tradition matters to a North American reader for two reasons. It demonstrates that the handheld form judged at best handheld bidet sprayers is not a budget substitute but the mature standard for hundreds of millions of users; and it explains the form's strengths — aim, control, multi-purpose use (see Guide G-38) — as design answers refined by daily use at scale.

North America: the slow yes

North America's resistance is usually explained with a story about soldiers, brothels, and moral association during the Second World War. The desk treats that story as folklore: it is endlessly repeated, rarely sourced, and at best one thread. The documented obstacles are duller and more structural. North American bathrooms were built small and standardised early around a toilet and a tub, with no rough-in and no floor space for a second fixture; plumbing codes and builders had no slot for the European form; and the seat form, when it arrived from Japan, was priced and marketed as a luxury novelty rather than a hygiene standard. Paper was cheap, entrenched, and heavily marketed. Nothing about the resistance was a verdict on washing; it was path dependence.

The shift, when it came, came through the seat: no rough-in, no floor space, a forty-minute install. Retail distribution widened through the 2010s, and the toilet-paper shortages of 2020 produced a widely reported spike in bidet sales and search interest in the United States — after which the category kept a visibly larger shelf presence rather than returning to novelty status. The desk states that sequence qualitatively because the underlying sales figures are industry-reported and unaudited. The structural point stands on its own: the form that finally travelled was the one that fitted the bathrooms North America had already built.

What the history settles for a buyer today

• The standalone fixture, the seat, and the sprayer are three separate traditions, not three quality tiers. Choosing between them is a cultural and architectural fit question, which is why our taxonomy refuses to rank forms against each other.
• Feature vocabulary — PREMIST, EWATER+, oscillation — is largely Japanese seat vocabulary, standardised by TOTO and its competitors over forty years. It is defined, without marketing gloss, in the glossary.
• “Nobody uses those here” was a statement about bathroom construction, not about the practice. The practice is the global norm; the dry-paper-only bathroom is the regional exception.

Frequently asked questions

Who invented the bidet?

No single inventor is documented. The device appears in French records in the early 1700s as furniture, and the electronic seat has a clear commercial origin point instead: TOTO's Washlet, launched in Japan in 1980.

Why do European bathrooms have a separate fixture?

Because the bidet arrived there as plumbed furniture before the seated flush toilet was universal, and bathroom layouts standardised around both fixtures. North America standardised its layouts earlier around a single fixture, leaving no slot.

Is the handheld sprayer a modern invention?

The plumbing is modern; the practice it serves — washing with water after toileting — is centuries old and religiously prescribed in Islam. The sprayer is the fixture that practice produced once pressurised water reached the bathroom.

Did bidets really take off in the US in 2020?

Retailers and manufacturers reported sharp sales increases during the 2020 toilet-paper shortages, and search interest measurably spiked. Those figures are industry-reported; the desk relies on the direction, not any specific percentage.

Why is Japan's adoption so much higher?

Documented contributors: an early, well-distributed domestic product (1980), compact bathrooms that favoured the seat form, and standardisation by builders and hotels that made the seat the default expectation rather than an upgrade.

Sources & evidence

This page is a synthesis of reference and trade history in general terms: encyclopaedic and museum accounts of the French fixture's origins and naming; manufacturer corporate histories (TOTO's published account of the 1980 Washlet launch and its own feature vocabulary); plumbing-trade coverage of the shattaf and of Islamic washing practice; and contemporary retail reporting of the 2020 North American sales spike. Where a commonly repeated figure or anecdote rests on industry self-reporting or folklore — Japanese household penetration percentages, the wartime-brothel explanation of American resistance — the text labels it as such rather than printing it as fact. No statistic on this page should be quoted without that label attached.