Do Bidets Cause UTI: What is the Truth?

Current research does not establish that routine bidet use either causes or prevents urinary tract infections (UTIs). UTIs usually occur when bacteria enter the urinary tract, and a person’s risk can be affected by anatomy, medical conditions, urinary problems, catheter use, sexual activity, and other factors.

A bidet should be treated as a personal hygiene device, not as a proven method for preventing or treating a UTI. Anyone experiencing symptoms of a UTI should contact a healthcare professional for evaluation and treatment.

This article reviews what current medical sources and published research say about bidet use and UTI risk.

 

 

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Understanding UTIs

To understand whether bidet use is related to UTIs, it helps to first understand how urinary tract infections develop.

A UTI occurs when bacteria enter and multiply in the urinary tract. The infection may affect the urethra, bladder, or kidneys. Bladder infections are the most common type of UTI, while kidney infections are less common but can be more serious.^[1][2]

What Is a Urinary Tract Infection?

A urinary tract infection is an infection affecting part of the urinary system, which includes the kidneys, ureters, bladder, and urethra. Most UTIs are caused by bacteria, although the location and severity of the infection can vary.^[1][2]

How Do You Know if You Have a Urinary Tract Infection?

Common bladder infection symptoms may include:

• A frequent urge to urinate
• A burning or painful sensation during urination
• Passing small amounts of urine frequently
• Cloudy or bloody urine
• Feeling the need to urinate even when the bladder is empty
• Pressure, cramping, or discomfort in the lower abdomen

Fever, chills, nausea, vomiting, or pain in the lower back or side may indicate a kidney infection. Anyone experiencing severe, persistent, or concerning symptoms should seek medical care.^[1]

How Do Women and Men Differ Regarding Urinary Tract Infections?

• Women: The female urethra is shorter and closer to the rectum, which can make it easier for bacteria to enter the urinary tract. Pregnancy, menopause, recent sexual activity, and changes in vaginal flora may also affect UTI risk.^[1]
• Men: UTIs are less common in younger men, but risk may increase with an enlarged prostate, urinary tract obstruction, urinary stones, catheter use, or other conditions that interfere with normal urine flow.

Do Bidets Cause UTIs? Exploring UTI Causes and Bidet Use

Available evidence does not show that routine bidet use directly causes UTIs. It also does not establish bidet washing as a reliable way to prevent them. Research in this area remains limited, and studies often examine broader urogenital symptoms or vaginal microflora rather than medically confirmed urinary tract infections.^[3][4]

How Are UTIs Typically Caused?

UTIs are typically caused when bacteria enter the urinary tract and begin to multiply. Escherichia coli, or E. coli, is a common cause of bladder infections, although other bacteria can also be responsible.^[1]

 

 

What Factors Can Increase the Risk of a UTI?

• Sexual activity and catheter use: Recent sexual activity and the use of urinary catheters can increase the likelihood of bacteria entering the urinary tract.
• Problems with urine flow: An enlarged prostate, urinary stones, urethral strictures, or structural urinary tract problems may prevent the bladder from emptying normally.
• Changes in vaginal flora: Menopause, pregnancy, and the use of spermicides may affect the bacteria normally present in the vaginal area.
• Previous infections and medical conditions: A previous UTI, diabetes, a weakened immune system, or a recent urinary procedure may increase individual risk.
• Hygiene practices: Practices that move bacteria from the rectal area toward the urethra may increase the opportunity for bacteria to enter the urinary tract.

Here is a general overview of commonly recognized UTI risk factors:

Common Factors	Women	Men	Individual Risk Factors
Previous UTI	Shorter urethra	Enlarged prostate	Diabetes
Recent sexual activity	Pregnancy	Urethral stricture	Urinary tract abnormalities
Urinary catheter use	Menopause	Urinary tract stones	Recent urologic procedures
Urinary tract obstruction	Spermicide use	Urinary catheter use	Weakened immune system
Inadequate hydration			Older age
Practices that move bacteria toward the urethra			Structural urinary problems

What Does Research Say About Bidets and UTIs?

Research specifically examining bidet use and urinary or genital infections remains limited and does not support a simple conclusion that bidets either cause or prevent UTIs.

A 2017 one-year follow-up survey found that some urogenital conditions were more common among existing bidet users at the beginning of the study. However, the researchers did not find a significant increase in the incidence of urological infections during the follow-up period. The study also noted that people with existing symptoms may have been more likely to use bidets, making it difficult to determine cause and effect.^[3]

A separate 2010 study reported differences in vaginal microflora among habitual warm-water bidet users. However, that study involved women who were already seeking care for increased vaginal discharge, did not directly evaluate UTIs, and cannot establish that bidet use causes urinary tract infections in the general population.^[4]

Together, these findings show why bidets should not be promoted as a proven UTI-prevention method and why an association observed in one group should not be treated as proof that normal bidet use causes UTIs.

 

 

Practical Bidet Use Considerations

Although bidets have not been proven to cause or prevent UTIs, improper or uncomfortable use may contribute to irritation or hygiene concerns. The following practices focus on routine external cleansing and device maintenance rather than medical prevention:

1. Follow the manufacturer’s instructions: Use the bidet only as directed and follow the recommended cleaning and maintenance schedule.
2. Keep the spray external: A bidet is intended for external cleansing. Do not use it as a vaginal douche, enema, or internal washing device.
3. Begin with gentle water pressure: Excessive pressure may cause discomfort or irritate sensitive tissue.
4. Choose a comfortable water temperature: Avoid water that is hot enough to burn or otherwise irritate the skin.
5. Keep the nozzle clean: Clean the nozzle and nearby surfaces according to the product’s care instructions.
6. Stop if irritation develops: Discontinue use and seek medical advice if washing causes persistent pain, irritation, unusual discharge, bleeding, or other concerning symptoms.

How to Use and Maintain a Bidet

Regular cleaning and gentle use may help limit irritation and device contamination, but these practices have not been proven to prevent UTIs.

• Clean the bidet regularly: Follow the manufacturer’s instructions for cleaning the nozzle, seat, and other exposed surfaces.
• Use comfortable settings: Start with low water pressure and adjust the temperature only within a comfortable range.
• Avoid excessive washing: Longer or more forceful washing is not necessarily more hygienic and may irritate sensitive skin.
• Use an appropriate washing direction: Avoid directing residue from the anal area toward the urethral or vaginal area.
• Dry gently when needed: Pat the external area dry with clean toilet paper or a clean personal towel rather than rubbing irritated skin.
• Do not use a bidet as treatment: A bidet cannot diagnose, cure, or treat an active or recurrent urinary tract infection.

 

When Should You Talk to a Healthcare Professional?

Contact a healthcare professional if you have pain or burning during urination, frequent or urgent urination, blood in the urine, persistent lower abdominal discomfort, fever, chills, nausea, or pain in the back or side. People with recurrent UTIs, pregnancy-related concerns, urinary catheters, recent urinary procedures, or ongoing genital irritation should ask a healthcare professional for individualized guidance.

For broader information about routine cleaning, nozzle care, water pressure, and everyday bidet hygiene, read our bidet hygiene guide. Product features vary by model, and a bidet should not be considered a substitute for medical advice, diagnosis, or treatment.

References

[1] Centers for Disease Control and Prevention. “Urinary Tract Infection Basics.” January 22, 2024. Accessed August 3, 2026.

[2] National Institute of Diabetes and Digestive and Kidney Diseases. “Bladder Infection (Urinary Tract Infection—UTI) in Adults.” Last reviewed April 2024. Accessed August 3, 2026.

[3] Kiuchi T, Asakura K, Nakano M, Omae K. “Bidet Toilet Use and Incidence of Hemorrhoids or Urogenital Infections: A One-Year Follow-Up Web Survey.” Preventive Medicine Reports. 2017;6:121–125.

[4] Ogino M, Iino K, Minoura S. “Habitual Use of Warm-Water Cleaning Toilets Is Related to the Aggravation of Vaginal Microflora.” Journal of Obstetrics and Gynaecology Research. 2010;36(5):1071–1074.