Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

6 Vet-Reviewed Reasons Why Your Cat Poops in the Tub & How to Fix It

Share

a cat sitting in the bathtub

If you’re a cat owner, you know how frustrating it can be when your cat poops or urinates anywhere in your home other than their litter box. It’s messy, smelly, and challenging to clean up! One popular place that cats seem to prefer over their litter box is the bathtub, the very place where you want to be as clean as possible.

There are usually a few reasons that your feline has abandoned their litter box in favor of the tub, sink, or shower. This issue is a fairly common behavior in cats and is primarily due to behavioral problems that are easy to address, but it can sometimes be the sign of a more serious underlying issue. In this article, we’ll discuss six common reasons your cat may be pooping in the tub and the steps you can take to fix it.

divider 2 cats

The 6 Reasons Your Cat Poops in the Tub

1. Behavioral Issues

Behavioral issues are the most common reason for your cat pooping in the tub. It could be due to drastic household changes that have caused your cat stress or improper litter box training. It is frequently a problem with kittens that are afraid of or haven’t been taught to use a litter box or with an adopted adult cat that never learned proper litter box etiquette.

This is the most common issue that causes cats to do their business somewhere other than their litter box and is the easiest to fix. First, rule out any stress that may have caused your cat to stop using the box, like a change of placement or lack of privacy, and make sure all is in order with their litter box. Using a litter box is instinctual for most cats, so ensuring the box is clean and located in a suitable, private location should entice them to use it. We suggest speaking to a vet for further advice.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

2. Health Issues

Your cat may be suffering from an underlying health issue, such as diarrhea, and they may be unable to access their litter box in time. In those situations, the behavior is usually temporary and will typically stop once your cat feels healthy and happy again.

Although it may seem counter-intuitive, constipation could also be the cause. Constipation can be uncomfortable at best and painful at worst for your kitty, and they may associate this pain and discomfort with their litter box. Once they finally feel the need to do their business, they may choose a private place like the tub to avoid their litter box.

If you notice that your cat’s poop is runny, they may have diarrhea. This can have several causes, including a change of diet or too many unhealthy treats, but it could also be an infection. If their food is unchanged and in order, you may need to take them to your vet for a check-up.

Cat Poop Chart
You are free to use this image, but please link back to Catster.com for credit

3. Stress

If something close to your cat’s litter box has frightened or stressed them out, they may associate this stress and fear with their litter box and choose to poop somewhere else. Cats can also easily get stressed by household changes, like new pets in the home or moving to a new home, and the stress may also cause them to stop using their litter box.

Try moving their litter box to a different spot in the house, which is quiet, calm, and private, where they won’t be bothered. If any drastic household changes are causing your cat stress, keep them away from your cat. For example, keep new pets away from the litter box location or give your cat their own space for a few days if you’ve moved to a new home. The behavior should rectify itself once your cat has stopped feeling stressed, anxious, or scared.


4. Litter Box Aversion

An accident or a stressful event may have caused your feline to be averse to their litter box, resulting in them using the tub as an alternative. Also, their box may be too small or difficult to access, or maybe you’ve purchased a new litter box that they are afraid of—a common occurrence with automated litter boxes.

It’s a good idea always to have an extra litter box. The standard rule of thumb is to have a litter box for each cat you own, plus another one. That way, if you decide to change their litter box to a new type or something has caused them to fear one litter box, they always have another option rather than the tub.

cat outside the litter box
Image Credit by: Jennifer McCallum, Shutterstock

5. Cat Litter Aversion

Cats are notoriously fussy about everything from food to bedding to litter. If they do not enjoy the litter in their litter box, they may simply decide to do their business elsewhere. If you’ve made any recent changes to their litter, like buying scented litter or switching the brand, this may be causing the issue. Many types of cat litter are on the market, and your cat may have a favorite.

Try switching back to the old litter or take on the task of getting your cat used to the new litter. If they are similar, try mixing the two and slowly phasing the old one out.


6. Cognitive Dysfunction

Your feline may be pooping in the tub due to cognitive dysfunction. Older cats can develop cognitive issues similar to dementia in humans, which can lead to disorientation and pooping in places other than their litter box. They may even forget where their litter box is or wait to go until the last minute, resulting in pooping in the tub.

Old age may also cause anxiety, behavioral issues, and physical issues that may lead to the behavior. While this is just the natural progression of getting older, there are medications that can help. You’ll need to speak to your vet about appropriate treatments.

divider 3 paws

How to Effectively Clean Pet Messes, Odors & Stains the First Time

One of the toughest parts about cleaning pet messes is ensuring the job you’ve done is effective enough to prevent any repeats. Many products on the market claim to eliminate odors and lift stains, but only one product can truly neautralize the smells that can be easily picked up by the sensitive noses of our pets. These are enzyme cleaners!

Our Favorite Enzyme Cleaner 

The Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray is our favorite enzyme cleaner out there. It permanently removes even the very worst kitty stains and smells, leaving your home fresh and clean! Click here to learn more about this amazing product and get yourself a bottle.

Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray
  • ADVANCED ENZYMATIC CLEANER - Penetrates the most stubborn smells and stains at the deepest molecular...
  • FOR ANY MESS, ON ANY SURFACE - This pet odor eliminator cleans your carpets, floors, furniture,...
  • FRESH, NATURAL ODOR - Our unique formulation doesn't rely on dangerous or unpleasant chemical...

At Catster, we’ve admired Hepper for many years, and decided to take a controlling ownership interest so that we could benefit from the outstanding products of this cool cat company!

divider 3 paws

Conclusion

Your cat may be pooping in the tub for many reasons, most of which are fairly easy to solve. The leading cause is anxiety or aversion to their litter or litter box. Something has frightened them, or they simply don’t like the style of litter box or variety of litter. If none of the previous solutions work, there may be something more serious at hand, and you’ll need to take your cat for a check-up with the vet.

See also:


Featured Image Credit: Irina Borodovskaya, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Chatting About the Rainbow Bridge, Euthanasia, and Laughter During Grief | Chatty Cattys, Episode 24

If you’ve ever felt the loss of a beloved cat, or are dreading the day when your pet crosses the rainbow bridge, you’ll...

The Simple Reasons Cats Refuse to Let Anyone Use the Bathroom Alone

Cats have an extraordinary talent for making themselves present in the most inconvenient places, and the bathroom ranks near the top of the...

A Paw-sitive Milestone: Canada Officially Becomes a Declaw-Free Nation

Canada has officially become a declaw-free nation. On May 25, 2026, a new regulation was filed in Ontario under the Provincial Animal Welfare...

The Surprisingly Simple Ways to Help a Cat With Hairballs

Cats spend an astonishing amount of time grooming. It is part hygiene routine, part comfort ritual, and part instinct that traces back generations....

More related

Ask Dr. Paola – Fleas, Loyalty & Excessive Licking (June 16, 2025)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

What Is the Flehmen Response in Cats? Our Vet Answers

Have you ever noticed your cat pull a disgusted face as if they have just smelt something horrible? Interestingly, this is a natural...

Why Do Cats Purr? 5 Vet-Reviewed Reasons Behind the Behavior

There’s something soothing about sitting with a purring cat, but do you know the reasons behind that distinctive vibration? It’s commonly thought that...

Is Alstroemeria Toxic to Cats? Vet-Approved Advice

If your cat just ate some of your Peruvian Lily or rubbed on the petals you may be panicking. Although the ASPCA lists...

Keep reading

Are Irises Poisonous to Cats? Vet Approved Facts & Safety Tips

You likely know how it feels when you discover that your cat has eaten something and you have no idea whether it’s safe. Things that kitties seem quite fond of include plants and flowers, which are common in households. While...

Catster_Are Irises Poisonous to Cats

How Often Should You Wash a Cat’s Food & Water Bowls? Vet-Approved Advice

Keeping your cat’s food and water bowls as clean as possible is important. Cleaning them regularly can reduce the risk of dangerous bacterial contamination, which can lead to health issues for your pet. But how often should you be washing...

Washing animal food bowls under the tap in the kitchen sink.

Can Cats Eat Yogurt? Vet-Reviewed Nutrition Facts & FAQ

For many, thinking of cats brings up images of them lapping up a saucer of milk. While it’s safe for kittens to have their mother’s milk, older cats are lactose-intolerant, so giving them milk or yogurt could result in a...

Can Cats Eat Yogurt

Why Do Cats Eat and Chew on Paper? 4 Reasons for This Behavior

Believe it or not, cats chewing on cardboard and paper is a problem that some pet parents encounter. Sometimes, owners mistake their cats playing with the toilet roll as a desire to eat it. In other cases, the cat might...

Cat eating paper

Do I Need to Put My Cat on a Liquid Diet? Vet-Approved Info & Guide

In most cases, cats will thrive on eating regular cat food throughout their entire lives. There are four main diets for cats that people are familiar with: dry, wet, semi-moist, and raw. Dry and raw diets are at opposite ends...

feeding cat using syringe

How to Give Subcutaneous Fluids to a Cat? 9 Vet-Approved Steps to Follow

Keeping our pets healthy is of vital importance, and sometimes, we need to step outside our comfort zones to provide our pets with the treatment that they need. One example of this is giving subcutaneous, or Sub-Q, fluids. These are...

close up IV saline drip

My Cat Ate a Poisoned Mouse! Crucial Vet Reviewed Next Steps

Cats are natural predators. They love to hunt toys, bugs, and small animals if they get the opportunity. Many people have cats as pets for companionship and to help protect their homes from rodents and other pests (like cockroaches). Not...

My Cat Ate a Poisoned Mouse

Play Aggression in Cats: Vet-Approved Signs, Causes & Solution

It’s all fun and games with your kitty until the claws are out or they are causing mischief! All too often, we can be having a cuddle or fun time with our cat when our forearm is suddenly gripped by...

Aggressive cat growling

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.