History of the Bidet: From France to the Modern Washlet

Origins: Where Did the Bidet Come From?

Court records and furniture inventories from the Palace of Versailles document bidets in private chambers as early as 1710. King Louis XIV and his court considered the bidet an essential hygiene accessory, and its presence in royal apartments signaled wealth and refinement. At this stage, the device was entirely manual: servants filled it with warm water carried from kitchens, and users washed themselves by hand before toweling dry.

The fixture spread through European aristocracy during the 18th century. Italian, Spanish, and Portuguese noble households adopted it, and it gradually moved from the bedroom to purpose-built water closets as plumbing systems developed in the late 1700s. By the early 19th century, bidets with hand pumps appeared, allowing users to propel water upward without buckets. This was the first iteration of what we now recognize as directional spray.

How Did the Bidet Spread Across Europe in the 19th Century?

The Industrial Revolution transformed bidet manufacturing just as it did every other household fixture. Cast iron replaced wood and ceramic frames. Improvements in porcelain glazing, pioneered by British companies like Twyfords and later adopted by Continental manufacturers, produced smoother surfaces that resisted staining and were easier to clean. Fixed spray nozzles fed by building water pressure replaced the manually pumped versions of the early 1800s.

By 1900, the bidet was fully domesticated in Southern and Eastern Europe. Italian building regulations dating to the mid-20th century actually mandated bidet installation in all new residential bathrooms with more than one room, a requirement still reflected in Italian construction standards today. In France, while the bidet remained common, it was never codified as a legal requirement the way it was further south. Germany, Scandinavia, and the United Kingdom remained largely resistant, a pattern historians attribute partly to Protestant cultural associations between hygiene and modesty that discouraged open discussion of personal washing routines.

The two World Wars shaped bidet attitudes in unexpected ways. American soldiers stationed in Europe encountered bidets in brothels and military brothels, and this association colored how the United States would view the device for generations. The bidet became associated with promiscuity in American cultural consciousness, an unfair legacy that slowed adoption by decades.

When Did Japan Reinvent the Bidet as an Electronic Washlet?

TOTO’s engineering team spent years perfecting the Washlet before its 1980 launch. Key challenges included water temperature control that felt comfortable rather than shockingly cold or scalding, nozzle self-cleaning to prevent bacterial buildup, and water pressure calibration gentle enough for daily use. The original model, the Washlet G Series, addressed all three. Its internal water heater provided steady warm water, a ceramic-coated self-cleaning nozzle retracted after each use, and spray pressure was adjustable through simple side panel controls.

Japan’s toilet culture accelerated rapidly from that point. By the 1990s, Japanese manufacturers including Panasonic, INAX (now part of LIXIL), and Toshiba had entered the electronic toilet seat market. Competition drove features forward: heated seats arrived to address Japan’s cold winters, deodorization systems using carbon filters or UV light neutralized odors, and posterior wash functions split into separate modes for different anatomy.

By 2022, the Japanese Cabinet Office reported that over 80 percent of Japanese households with flush toilets had an electronic bidet seat installed. Japan Airlines and most major hotel chains in Japan standardized electronic bidet seats across their entire property portfolios. The National Tourism Organization of Japan began including toilet feature guides in visitor resources to help international tourists unfamiliar with the controls. Japan had, within 40 years, transformed from a country with no bidet culture to one where the device was considered a basic comfort.

Why Did the United States Resist the Bidet for So Long?

The infrastructure barrier was real and significant. Most American bathrooms were designed for a toilet, sink, and shower or tub without any additional fixture space. Unlike Italian or Portuguese apartments built with bidet plumbing as standard, retrofitting a standalone bidet into an American bathroom typically required adding a water supply line, a drain connection, and enough floor space for a second fixture beside the toilet, a renovation project costing thousands of dollars.

Electronic bidet seats solved the infrastructure problem elegantly. They attach to the existing toilet bowl, connect to the existing cold-water supply line at the toilet shutoff valve, and require only an electrical outlet nearby for heating functions. No tile work, no drain installation, no contractor required. Installation typically takes 15 to 30 minutes with basic tools. This form factor was the key to American adoption once consumers became aware it existed.

The toilet paper shortage of March 2020 exposed millions of Americans to bidet seats and attachments for the first time. Amazon reported bidet search volume increasing by over 1,400 percent in the first two weeks of March 2020. Several bidet brands sold out entirely within days. TOTO, Kohler, Bio Bidet, Brondell, and TUSHY all saw multi-week backorders. When customers received their units, many reported never returning to paper-only use. The crisis created a permanent shift in American hygiene habits that has continued growing since.

How Have Modern Bidet Brands Advanced the Technology Beyond the Original Washlet?

TOTO itself has continued innovating its Washlet line since 1980. The current TOTO Washlet+ S550e integrates with TOTO’s Aquia IV toilet, creating a single unified unit with no exposed wiring or hoses. Its ewater+ system mists the bowl and wand with electrolyzed water that reduces bacteria without chemical cleaners. The S550e also includes an automatic deodorizer, a premist function that coats the bowl before use to prevent waste adhesion, and a remote control with memory settings for two users.

Kohler entered the advanced bidet market with its Veil and Innate lines. The Kohler Innate includes a bidet wand with three spray modes, a heated seat with five temperature settings, an integrated nightlight, and emergency battery backup that allows lid operation during power outages, a practical feature in hurricane-prone American markets. Kohler designs its bidet seats to pair with its Veil one-piece toilet for a seamless visual profile.

Bio Bidet and Brondell serve the mid-market with seats like the Bio Bidet BLISS BB-2000 and the Brondell Swash 1400. Both offer stainless steel nozzles, warm air drying, heated seats, multiple spray modes, and wireless remote controls at price points significantly below TOTO’s premium lines. These brands have driven mainstream American adoption by making electronic bidet functionality accessible without requiring a luxury appliance budget.

Simple non-electric bidet attachments from brands like TUSHY and Luxe Bidet occupy the entry-level market. These attach under the toilet seat, connect to the cold-water supply, and deliver a single spray mode without any electronic features. Prices start under 40 dollars. These attachments were the primary products that sold out during the 2020 shortage and introduced millions of first-time users to bidet hygiene before many upgraded to full electronic seats.

For consumers considering how bidet features interact with toilet bowl design, understanding trapway geometry and flush performance becomes relevant because a well-flushing toilet prevents residue that makes frequent bidet use more effective. Our guide to the best flushing toilets covers how MaP testing scores, trapway diameter, and flushing technology combine to affect daily performance alongside bidet use. See also our best bidet toilet combo guide for units where the bowl and seat are engineered together.

What Are the Environmental and Health Benefits That Drive Global Bidet Adoption?

The environmental calculation for bidets centers on water versus paper. Producing a single roll of toilet paper requires approximately 37 gallons of water across its manufacturing lifecycle, including wood pulp processing, bleaching, and papermaking. A single bidet wash session uses roughly 0.1 to 0.13 gallons of water. A household using toilet paper exclusively for cleansing after each toilet visit over one year consumes substantially more water in paper production than it would save by switching to bidet use, even accounting for the wash water.

The American Sewer and Wastewater Council has noted that reduced toilet paper use also benefits municipal sewer systems. Toilet paper, even the flushable-labeled variety, contributes to fatbergs and clogs in older sewer infrastructure. Cities with aging pipe networks have begun public education campaigns around reducing paper flushes, and bidet adoption supports those goals. This aligns with EPA WaterSense goals around overall water system efficiency, even though WaterSense does not yet rate bidet seats specifically.

From a medical standpoint, the benefits are well documented in gastroenterological literature. A 2017 study published in the Journal of Wound, Ostomy and Continence Nursing found bidet use significantly reduced pain and bleeding in patients with hemorrhoids compared to dry toilet paper. Japanese hospital surveys of post-operative colorectal patients consistently recommend bidet use during recovery. The American Society of Colon and Rectal Surgeons includes bidet use in post-surgical care recommendations for patients recovering from anorectal procedures.

Water efficiency in the broader bathroom context connects bidet toilet seat selection to toilet flush performance. EPA WaterSense certified toilets using 1.28 GPF or less are now the standard for new installations, and pairing a WaterSense toilet with a bidet seat that replaces most paper use represents the most resource-efficient modern bathroom configuration available. Our water efficient toilet guide explains how to read WaterSense labels and MaP flush scores together when selecting a new toilet for a bidet-equipped bathroom.

How Do Today’s Integrated Smart Toilet Systems Compare to the First Washlet?

TOTO’s current top-tier offering, the Washlet+ S550e paired with the TOTO Aquia IV, eliminates the separate-component look entirely. The seat and toilet bowl share a single design language, and all water supply connections are concealed inside the unit. TOTO’s ewater+ system, an electrolyzed water mist applied to the bowl and wand before and after use, represents a genuine innovation over the original Washlet: it reduces bacteria on contact surfaces without requiring users to apply any chemical cleaners.

Kohler’s Veil Intelligent Toilet takes a different engineering path. Rather than a toilet-plus-seat combination, the Veil is a single-unit elongated toilet with bidet functions fully integrated into its structure. There is no visible separate seat component. Kohler designed the internal water pathways to maximize spray precision while minimizing the unit’s external profile, making it compatible with smaller contemporary bathroom layouts. The Kohler Veil supports voice control through Amazon Alexa, a feature with no analog in 1980.

American Standard has entered the smart toilet category with its Advanced Clean 100 SprayWash Seat, a more affordable bidet seat compatible with its ActiClean and Cadet 3 toilet lines. The Advanced Clean 100 offers five spray modes, adjustable water temperature and pressure, a warm air dryer, and a nightlight. American Standard positions this as an accessible first step into electronic bidet use without requiring full toilet replacement.

Woodbridge, a brand that has grown significantly in the US market, offers its T-0001 smart toilet as a one-piece integrated unit with built-in bidet functions at a price point between American Standard’s entry-level offerings and TOTO’s premium lines. The Woodbridge T-0001 has accumulated strong owner review scores across major retail platforms, with users consistently noting ease of installation and intuitive remote control design. See our Woodbridge T-0001 review for a detailed breakdown of its flush performance and bidet feature set.

For those shopping standalone bidet seats to pair with an existing toilet, compatibility matters. Elongated bowls accept most bidet seats, but round bowls require specific round-compatible models. Seat dimensions from brands like Kohler, American Standard, and TOTO follow the same basic footprint, but checking manufacturer fit guides before purchasing prevents mismatches. Our best bidet seats guide covers compatibility matching in detail.