Why Does The Urge To Pee Grow Stronger The Moment You Enter The Washroom?

One of the reasons behind our sudden increased urge to pee when entering or even approaching a lavatory/restroom is related to how the brain is conditioned concerning the idea of peeing.

We’ll discuss the increase in our urge to pee near washrooms in a moment, but first, you should hear about a related and particularly famous experiment conducted during the 1890s by a Russian physiologist called Ivan Pavlov. 

This legendary study related to how dogs salivate in response to not just the presence of food, but even the idea of the presence of food. 

Pavlov’s Conditioning

Ivan Pavlov wanted to test something—whether he could condition a dog in a way that it would react predictably to a given stimulus.

The following is an oversimplified but representative account of the experiment.

Pavlov first rang a bell in front of a dog and noticed that, quite predictably, the dog gave no special response. 

Then, Pavlov began his experimental procedure—he now rang the bell just before giving food to the dog. Upon seeing the food, the dog would salivate in anticipation. 


The Pavlovian experiment. (Photo Credit : VectorMine/Shutterstock)

The scientist repeated this activity a number of times; just before he would give food to the dog, he would ring the bell. After multiple iterations of this, he noticed that when he rang the bell, the dog would start salivating, even if there was no food being presented to the dog!

The dog had learned an association between the bell and food, so it salivated just at the sound of the bell. 

This phenomenon of learning through association is now referred to as Pavlovian conditioning or classical conditioning. 

Association between the bathroom and the urge to pee

Although scientists are not exactly sure why we feel like peeing the moment we enter the washroom, it’s a popular belief that it’s related to Pavlovian conditioning (Source).

Think about this for a minute… how long have you been urinating in bathrooms? Pretty much all your life, right? That’s a decade or two, at least.

For years, you have associated your bathroom with answering nature’s call and relieving yourself. That is why when you approach the washroom door, or even enter your apartment, your urge to pee becomes stronger. This is because your brain, which had been controlling the urge for so long, suddenly realizes that you’re near the place where you can relieve yourself of the ‘pressure’.

The impact of the urge is different for different people; some people feel the urge getting stronger as they enter the washroom, some feel it when they enter their apartment, and others feel it the moment they see a urinal or even the sign for a restroom. 


If you were holding your pee right this moment, would this sign make your urge to pee any greater? (Photo Credit : Oilly.Ar/Shutterstock)

There are some other stimuli as well, such as getting up after waking up in the morning, being cold, and seeing running water.

Overactive Bladder

Some people experience this sudden, strong urge to pee more than others, which may be due to an overactive bladder (also called OAB).

This is how things work in a normal situation: as your bladder fills with urine brought in by the kidneys, the former stretches itself and makes room for the urine. Typically, we experience the first urge to urinate when the amount of urine present in the bladder is a little less than 240 millimeters (nearly 1 cup). Most people’s bladders can hold more than 480 milliliters of urine. 

Having an overactive bladder means that you have a condition where the bladder squeezes out urine at the wrong time. As you can imagine, this is highly undesirable. You can read more about the symptoms, diagnosis and treatment for this condition here

So, if you feel that you’re never able to resist the urge to pee for more than a few seconds and you urinate very frequently, it might be a good idea to consult a physician and get yourself medically checked out. 

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However, if you feel like urinating the moment you see a urinal or just a restroom sign, don’t worry… it’s a perfectly normal reaction of our classical conditioning, and all of us experience it from time to time!

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About the Author

Ashish is a Science graduate (Bachelor of Science) from Punjabi University (India). He spends a lot of time watching movies, and an awful lot more time discussing them. He likes Harry Potter and the Avengers, and obsesses over how thoroughly Science dictates every aspect of life… in this universe, at least.

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