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Why do people say not to pee in the shower? Understanding the health concerns

4 min read

While surveys show a significant number of people admit to urinating in the shower, medical professionals raise concerns beyond simple etiquette. The reasons why people say not to pee in the shower are complex, touching on potential issues for your bladder health, pelvic floor, and even psychological conditioning.

Quick Summary

People advise against urinating in the shower primarily due to potential long-term effects on bladder function and pelvic floor muscles, as well as the risk of conditioning your brain to associate the sound of running water with the urge to urinate.

Key Points

  • Pavlovian Conditioning: The brain can create an association between the sound of running water and the need to urinate, potentially leading to incontinence issues later in life.

  • Pelvic Floor Dysfunction: Urinating while standing, especially for those with female anatomy, can prevent the pelvic floor muscles from relaxing, leading to incomplete bladder emptying and eventual muscle weakening.

  • Infection Risk: Although low for healthy individuals in private showers, bacteria in urine could enter open cuts or scrapes, posing a minimal infection risk. This risk is higher in public or shared facilities.

  • Hygiene and Sharing: It is considered impolite and unhygienic to urinate in a shared shower, as you cannot know the health status of other users.

  • Training Your Bladder: You can re-train your bladder by making a conscious effort to urinate before showering and avoiding the urge when you hear running water, which can prevent unwanted reflexes.

  • Convenience vs. Health: While peeing in the shower can save a small amount of water and is convenient, these benefits should be weighed against the potential long-term health implications for your bladder and pelvic floor.

In This Article

The Psychological Link: How Your Brain is Conditioned

One of the most frequently cited reasons against peeing in the shower is the risk of developing a conditioned response. This concept is a form of classical conditioning, similar to Pavlov’s experiments with dogs.

When you consistently combine the act of urinating with the sound of running water from the shower, your brain begins to link the two. Over time, hearing any running water—whether from a faucet, a sprinkler, or a running toilet—could trigger the urge to urinate, even when your bladder is not full. This reflex can be particularly problematic for individuals with existing bladder control issues, like an overactive bladder or urge incontinence, potentially leading to involuntary leakage. For those without pre-existing conditions, it can still create an unwanted association that may manifest later in life. To avoid this, experts suggest making a conscious effort to separate the two actions by relieving yourself before or after your shower.

The Impact on Pelvic Floor Health

Another significant concern, especially for women, is the effect of urinating in a standing or hovering position on the pelvic floor muscles.

  • Incomplete Bladder Emptying: When you stand, your pelvic floor muscles may not relax fully, which can prevent your bladder from emptying completely. A full emptying of the bladder is essential to prevent leftover urine from becoming a breeding ground for bacteria.
  • Straining and Weakening: Continuously trying to urinate while your muscles are in a suboptimal position can lead to straining. Over time, this can weaken the pelvic floor, potentially contributing to bladder control problems and incontinence. The optimal position for urination is seated with feet supported, as this allows the pelvic floor to relax completely. While some argue that the warm water of a shower can relax muscles, the overall mechanics of standing to urinate remain a point of concern for some medical professionals.

Hygiene and Infection Risks

While some see peeing in the shower as a convenient and hygienic way to save water, there are specific situations where it could pose a minor health risk.

  • Shared Showers: The biggest risk is in communal spaces like gyms or dorms. While a healthy person's urine may contain low levels of bacteria, if a user has a urinary tract infection (UTI), the bacteria count is higher. Even though the water washes it away, a person with an open wound on their foot could theoretically be at risk of infection from lingering bacteria. It is simply more considerate to use the toilet when sharing facilities.
  • Open Wounds: Although rare, if urine comes into contact with an open cut or scrape on your foot, it could potentially introduce bacteria and interfere with the healing process. The skin is a natural barrier, but small tears from shaving or exfoliation can be entry points for bacteria, even if the risk is low.

Potential Upsides and the Counterarguments

It’s worth noting that the practice is not universally condemned. Many people and even some medical experts find the occasional shower pee harmless, pointing to potential benefits like water conservation.

  • Water Conservation: For environmentally conscious individuals, peeing in the shower is seen as a way to save water by flushing the toilet one less time per day. The University of East Anglia in England famously launched a campaign around this idea, with students calculating significant water savings annually.
  • Convenience: For many, it is simply a matter of convenience and time-saving, especially during a busy morning routine. When done occasionally and with good hygiene, the medical risks are considered minimal by some urologists.

Comparing Shower Urination vs. Toilet Urination

Aspect Urinating in the Shower Urinating in the Toilet (Seated)
Bladder Health Potential risk of incomplete emptying, especially for women standing, which can lead to bad bladder habits. Promotes full bladder emptying due to relaxed pelvic floor muscles.
Pelvic Floor Possible weakening or straining of pelvic floor muscles over time, increasing risk of incontinence. Optimal position for pelvic floor relaxation and long-term muscle health.
Hygiene Low risk in a personal shower but potential for infection if open wounds are present or in shared facilities. Minimal hygiene risk when using a clean, personal toilet.
Psychological Effect Risk of creating a conditioned reflex associating running water with urination. No association created with sound of running water.
Environmental Impact Saves one toilet flush per day, conserving water. Uses water for each flush, a less environmentally friendly option in this specific context.

How to Re-train Your Bladder and Improve Habits

If you have developed a habit of peeing in the shower and are concerned about the effects, particularly a sensitivity to running water, there are ways to re-train your bladder.

  1. Empty Your Bladder Beforehand: Urinate in the toilet before you turn on the shower to avoid the trigger of running water.
  2. Use Distraction: If you feel the urge in the shower, try to ignore it. Focus on washing your hair or body and wait until you are out of the shower to use the toilet.
  3. Use Behavioral Techniques: For those with a conditioned reflex, a pelvic floor physical therapist might recommend specific techniques, such as quick Kegel exercises or deep breathing, to suppress the urge when triggered by water.

For more in-depth information on pelvic floor health and bladder function, consider visiting the Cleveland Clinic website. They offer comprehensive guides and resources from medical experts.

The Final Verdict

Ultimately, whether or not to urinate in the shower is a personal choice, but the reasons people advise against it are rooted in real medical concerns, not just social stigma. The potential issues of bladder conditioning, pelvic floor weakening, and minor hygiene risks, especially in shared spaces, are valid points to consider. By understanding these factors, you can make an informed decision that prioritizes long-term bladder and pelvic floor health over short-term convenience. For most, an occasional slip-up is likely harmless, but turning it into a regular habit could have unintended consequences down the line.

Frequently Asked Questions

Yes, it can potentially train your bladder to associate the sound of running water with the urge to urinate, which could lead to urgency and leakage issues, particularly if you have or are at risk for pelvic floor dysfunction.

When women urinate while standing, their pelvic floor muscles do not fully relax, leading to incomplete bladder emptying. This can weaken the muscles over time and contribute to bladder problems.

No, contrary to a popular myth, healthy urine is not sterile and contains low levels of bacteria. While the risk is low, it could potentially cause an infection if it comes into contact with an open wound.

An occasional instance is unlikely to cause significant harm. The primary concern is developing a consistent habit that conditions your brain and potentially weakens pelvic floor muscles over time.

No, urine is mostly water and is not acidic enough to cause harm to modern plumbing. The flushing of shower water also helps to wash it away effectively.

To reverse the conditioning, try emptying your bladder before you get in the shower and actively focus on ignoring the urge if it arises while the water is running. Consistency is key to re-training your brain.

Yes. In public showers, where you are unaware of others' health conditions, it's particularly unhygienic. Bacteria from another person's urine could increase the risk of infection, especially if you have a cut on your foot.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.