Abyss Scuba Diving

Uncovering The Truth: Why Do Divers Pee In Wetsuits?


Uncovering the Truth: Why Do Divers Pee in Wetsuits?

Picture this: you’re diving in the deep blue sea, surrounded by fascinating marine life, and suddenly…you feel the urge to pee. Before you panic and start questioning your life choices, let’s dive into the mysterious world of “Why do divers pee in wetsuits?”. Why do divers do it, and what are the implications? Is it a harmless quirk or a dark secret of the diving community? In this blog post, we’ll explore the science behind the urge to pee in wetsuits, discuss the pros and cons, and uncover some alternatives and etiquette tips related to why divers pee in wetsuits.

Key Takeaways

  • Immersion diuresis and cold water make divers want to pee in their wetsuits, but it comes with risks!

  • Alternatives like proper hydration can help keep you dry, while proper care & etiquette will keep your fellow divers happy.

  • Peeing in the ocean won’t attract sharks - just don’t forget to minimize your impact on marine life!

The Urge to Pee: Immersion Diuresis Explained

A person wearing a wetsuit and diving in cold water

As surprising as it may sound, peeing in wetsuits is not a bizarre ritual exclusive to the diving community. It’s actually a natural response to a phenomenon called immersion diuresis.

What triggers this seemingly inevitable need to urinate the moment we immerse in water? The answer lies in the pressure of being fully submerged, the constriction of peripheral blood vessels, and a drop in body temperature - a classic case of ‘Too Much Water, Too Little Time’.

How does this result in an uncontrollable need to urinate? Let’s delve further into the science behind immersion diuresis.

Cold Water and Blood Vessel Constriction

When you plunge into cold water, your body reacts with vasoconstriction, which means blood flow decreases and blood pressure rises. This response aims to conserve heat and protect your vital organs by redirecting blood flow from your extremities to your body’s core. While this might help you stay warm, it has an unexpected side effect - increased urine production.

As your blood vessels constrict, your body interprets this as having extra blood volume, leading to excess fluid overload. The kidneys spring into action to reduce this perceived excess, and as a result, kidneys produce more urine than usual, and before you know it, you’re faced with a full bladder.

Does urinating in your wetsuit have any advantages, or is it an invitation to trouble?

Fluid Overload and the Kidneys

While the urge to pee might seem like a mere inconvenience, fluid overload can have serious consequences for your central organs, such as the kidneys; overworking the kidneys can reduce their ability to filter out toxins and waste from the body, leading to a buildup of toxins and a decreased capacity to produce urine. This may increase the risk of urinary tract infections.

Although urinating in a wetsuit may offer momentary comfort, it brings along risks like skin irritation and infections. Is there a brighter side to this embarrassing predicament?

The Pros and Cons of Peeing in Your Wetsuit

A diver in a wetsuit underwater, thinking

On the one hand, peeing in your wetsuit can offer a brief feeling of warmth and comfort. On the other hand, it can also lead to a lingering chill and some unpleasant side effects, such as skin discomfort and infections, especially during a cold dive.

While the transient warmth may be enticing, does it outweigh the possible risks and humiliation? Let’s balance out the advantages and disadvantages.

Temporary Warmth vs. Long-term Cold

Peeing in a wetsuit might feel like a warm hug for your legs, providing instant satisfaction and the illusion of coziness. But this fleeting warmth, which can be attributed to warm urine, comes at a price. Prolonged exposure to urine can irritate your skin and even lead to infections.

The temporary relief is often overshadowed by the long-term cold that can set in once the urine cools down and leaves you shivering in a cold environment. So, while it might seem like a good idea in the heat (or cold) of the moment, the benefits are often short-lived and outweighed by the potential drawbacks.

Health Risks: Skin Irritation and Infections

Peeing in a wetsuit might not seem like a big deal, but it can lead to some painful and unpleasant health risks. Skin irritation and infections can result from urine exposure, especially if it remains in contact with the skin for too long.

Additionally, urine is slightly corrosive, which can weaken the wetsuit’s material and potentially shorten its lifespan. So, before you decide to let loose in your wetsuit, consider the potential health risks and whether it’s really worth the temporary warmth.

Proper Wetsuit Care: Cleaning and Maintenance

Cleaning  wetsuits with a wetsuit cleaner

It’s clear that peeing in your wetsuit comes with risks, but proper wetsuit care can help mitigate these hazards. Cleaning and maintaining your wetsuit is essential to avoid unpleasant odours, skin irritations, and infections. By caring for your wetsuit, you can also extend its lifespan and ensure you get the most out of your investment.

What are some methods to maintain your wetsuit in prime condition after an admittedly ‘wet’ dive?

Avoiding Unpleasant Odors

The key to avoiding unpleasant odours in your wetsuit is proper cleaning and rinsing after each use. Using a wetsuit cleaner, mild detergent, or even a homemade cleaning solution can help you keep your wetsuit smelling fresh and free of bacteria.

Additionally, allowing your wetsuit to air-dry properly after cleaning can prevent the growth of mould and mildew, further reducing the risk of skin irritation and infections. Invest time in maintaining your wetsuit, and you’ll be rewarded with a fresh-smelling diving experience.

Repairing Damaged Wetsuits

If your wetsuit has been subjected to the corrosive effects of urine or other damage, fear not! Repairing your wetsuit is possible with the right tools and techniques. Neoprene adhesive or cement can be used to patch up small rips and tears, while a thorough cleaning with alcohol can help spruce up the area around the damage.

Through repair and upkeep, you can prolong your wetsuit’s durability and keep enjoying your marine escapades comfortably and stylishly with your wetsuit straight.

Alternatives to Peeing in Your Wetsuit

A person drinking water to stay hydrated

While peeing in your wetsuit might seem like the easiest solution when nature calls, there are alternatives that can help you avoid the risks and unpleasant side effects. From staying hydrated to managing fluid intake and making food choices that reduce urine odour, you have options when it comes to keeping your wetsuit pee-free.

What options do you have, and how can they contribute to a more comfortable and clean diving experience?

Staying Hydrated and Managing Fluid Intake

One of the most effective ways to avoid the urge to pee in your wetsuit is to stay hydrated and manage your fluid intake. Drinking plenty of water before and during your dive can help you maintain proper blood volume and reduce the risk of dehydration, which can trigger immersion diuresis.

By staying hydrated and avoiding diuretics like caffeine and alcohol, you can minimize the need to pee during your dive and enjoy a more comfortable underwater experience.

Food Choices and Urine Odor

Did you know that certain foods can affect the odour of your urine? Foods high in protein, such as fish, eggs, and nuts, can give your pee a more pleasant aroma. By making smart food choices, you can reduce the risk of unpleasant odours in your wetsuit and potentially make any accidental “leaks” less noticeable.

When planning your next dive, think about including a high-protein snack to maintain your wetsuit’s refreshing aroma.

Peeing Etiquette: Dos and Don'ts

Washinga wetsuit

We’ve covered the science, risks, and alternatives to peeing in your wetsuit, but what about the etiquette? Knowing when it’s appropriate to pee in your wetsuit and following proper guidelines when borrowing or renting wetsuits can help you maintain good relationships with your fellow divers and protect your wetsuit investment.

Let’s explore the etiquette of urinating while diving - the do’s and don’ts.

When to Pee and When Not to Pee in your wetsuit

The general rule of thumb is that it’s acceptable to pee in your wetsuit while you’re in the water but not when you’re on dry land and can access a restroom. This can help you avoid skin irritation, infections, and unpleasant odours while still providing relief when you really need it.

Remember, while diving, if the need arises, restrict it to the water and reserve terrestrial bathrooms for more suitable times.

Borrowing and Renting Wetsuits

When borrowing or renting wetsuits, it’s important to follow the same etiquette as when peeing in your own wetsuit. This includes not peeing in a brand-new or rented wetsuit and ensuring you follow any specific rules or requirements from the rental provider.

Always seek consent when borrowing a friend’s wetsuit and handle it as your own. Adhering to these principles will help you sustain healthy relationships with your fellow divers and ensure your wetsuit stays in prime condition.

The Impact on Marine Life


You might be wondering if peeing in your wetsuit has any significant impact on marine life. The good news is that the impact is minimal, with no evidence suggesting that urine attracts sharks or other marine creatures.

While it’s always best to minimize our impact on the environment, you can rest assured that the occasional wetsuit pee is unlikely to cause any harm to our underwater friends.

wetsuits haning up to air after washing


In conclusion, peeing in your wetsuit is a natural response to immersion diuresis, but it comes with risks and potential drawbacks. By following proper wetsuit care, considering alternatives, and minding your peeing etiquette, you can enjoy a more comfortable and hygienic diving experience. Remember, when it comes to peeing in your wetsuit, it’s not just about staying warm – it’s about diving responsibly and protecting both your wetsuit investment and the underwater world we all love to explore.

Frequently Asked Questions

Do people pee in wetsuits to keep warm?

Yes, some may consider peeing in their wetsuit to stay warm, but it's really not recommended. You may experience temporary warmth; however, the loss of body heat when the water enters the suit can put you at risk of hypothermia. So, no matter how tempting it may be, don't do it!

Why do I need to pee when diving?

Diving causes your body to increase its blood volume, which triggers a signal for your kidneys to produce urine as a way to lower the circulating blood volume and balance your fluids. That's why you have to pee when diving!

Why can't I pee in my wetsuit?

Although peeing in a wetsuit won't damage it as much as some may think, it's still not advised. Urine is slightly acidic, and its pH ranges from 5.5 to 7, so it can be corrosive when left inside a wet suit for a long time. For best results, rinse your wetsuit after each use with fresh water to ensure you don't end up with an irreparable urine scent.

Is peeing in your wetsuit harmful to marine life?

No need to worry; peeing in your wetsuit won't make you a magnet for marine life. So go ahead and take a dive!

Can peeing in a wetsuit cause skin irritation or infections?

Yes, peeing in a wetsuit can lead to skin irritation and infections - so please don't flush your dreams of becoming a mermaid down the toilet! Clean and maintain your wetsuit to avoid any unwanted consequences.