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.

Why Does My Cat Pee on Plastic Bags? 6 Vet-Reviewed Reasons & Solutions

Share

cat lying inside a plastic bag

If you’ve ever come home to find that your cat has peed on a plastic bag, you’re not alone. This odd behavior is surprisingly common in cats for a variety of reasons. The reasons could be as plain as a strange chemical love for plastic or indicate a greater issue. Let’s discuss six of the most likely reasons why your cat is peeing on plastic bags so you can fix this annoying problem.

divider cat faces 2 oct 2024

The 6 Reasons Why Cats Pee on Plastic Bags

1. Medical Issues

While it’s normal for a cat to use the odd piece of plastic as a makeshift litter box, repeated urination on plastics can be a sign of an underlying medical issue. If your cat is urinating on plastics, it’s important to take them to the vet for a check-up. One possible cause of this behavior is feline lower urinary tract disease (FLUTD), or a urinary tract infection (UTI). FLUTD is caused by a different group of conditions that can lead to inflammation and blockages in the urethra. While FLUTD can be a frustrating medical problem that can even lead to painful and life-threatening complications for your cat, it can be managed and treatable with medication, lifestyle changes, and cooperation between you and your vet.

Signs of urinary-related disease in cats include:
  • Urinating outside of the litter box
  • Straining to urinate
  • Blood in the urine
  • Increased frequency of urination

If your cat is displaying any of these signs, it’s essential to take them to the vet for a check-up as soon as possible.

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!

PangoVet_Mention-in-Content for PangoVet2 save money


2. They Don’t Like Their Litter Box

There are several reasons why your cat may not be using their litter box, but the first thing to consider is whether the box is clean. Cats are notoriously clean creatures, and they may be unwilling to use a dirty litter box. If you think this may be the problem, try scooping the box more frequently or completely changing the litter more often.

Another possibility is that the box is too small for your cat. If it feels cramped or claustrophobic, they may prefer to go elsewhere. You can solve this problem by getting a larger litter box or moving the box to a more open area. You may also need to reconsider the location of the litter box, as cats prefer a quiet spot for toileting, away from doors, windows, and corridors.

Finally, some cats simply don’t like traditional litter. If this is the case, you may need to experiment with different types of litter before finding one they’re willing to use.


3. Appealing Sound and Texture

While this may seem odd to us, some cats simply enjoy the feel of plastic bags. The texture is different from their usual scratching surfaces, and they may find it enjoyable to scratch or chew on.

If your cat is peeing on plastic bags because they like the feel and sound of them, you can try to provide them with an alternative. This could be a cat tree with a sisal rope wrapped around it or a scratching post covered in burlap. You may also want to give them a toy made of similar material, such as a plastic ball or rubber chew toy. Any time you introduce a new toy or material to your cat, you should watch them initially to ensure they tolerate it well and that they are not chewing on it. Otherwise, the item would pose a foreign body risk to your cat.

The plastic texture may also be appealing as a soft texture for burying their waste—a natural instinct. If this is the case, consider changing their litter to something softer and easier for burial.


4. Anxiety and Stress

Like humans, cats can experience anxiety and stress. And when they do, they may look for ways to self-soothe. Some cats will lick their fur obsessively, while others will chew on plastic bags.

If you think your cat is peeing on plastic bags because of anxiety or stress, there are a few things you can do to help them. First, try to identify the source of their stress and remove it if possible. For example, if they’re anxious about other animals in the house, try setting up a separate room for them with their own food, water, and litter box. You can also try giving them a calming supplement to help reduce their stress levels. There are a number of these on the market, but you should speak to your veterinarian about which one would be best for your cat.

In some cases, medication may be necessary. If your cat is experiencing severe anxiety, your veterinarian may prescribe anti-anxiety medication.

tabby cat licking her paw
Image By: SJ Duran, Shutterstock

5. Marking Their Territory

Cats are territorial creatures, and they mark their territory with urine. When they pee on plastic bags, they may be trying to assert their dominance over you or another animal in the house.

If you think this is why your cat is peeing on plastic bags, you can do a few things to stop it. First, make sure their litter box is in a location that they feel comfortable with. It should be away from areas where they eat or sleep, and it should be in a quiet part of the house.

You can also try using a litter box with high sides. This will help your cat feel more enclosed and secure, and it may deter them from marking their territory.

Finally, you can try using a pheromone diffuser in the house. These release calming chemicals that can help reduce your cat’s stress levels and make them less likely to mark their territory.


6. They Like the Smell

If you’ve ever owned a cat, you’re probably all too familiar with the bewildering sight of your furry friend rubbing their face against a plastic bag or container. While the smell of plastic may not be particularly pleasant to humans, for cats, it seems to be irresistible. It is possible that what cats are attracted to is the smell of whatever was inside the plastic bag.

Other theories include cats being attracted to tallow (animal fat) that has been used in plastic synthesis or cornstarch, which is a common ingredient in more modern biodegradable plastics.

It’s also worth noting that not all cats are attracted to the smell of plastic. In fact, some seem to be repelled by it. This is likely due to individual differences in the way each cat’s body metabolizes scents.

divider cat faces 2 oct 2024

Final Thoughts

If your cat is urinating on plastic bags, there are a few possible reasons. They may be attracted to the smell of the bag, they may be marking their territory, or they may have a medical issue. If you’re concerned about your cat’s behavior, it’s always best to consult with your veterinarian.

The quickest and easiest way to remedy the issue is to remove access to any plastic bags. If the cause is an innocent attraction to plastic, the problem will disappear.

See also:


Featured Image By: Nadinelle, 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.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Ask Dr. Paola – Help! My Cat Suddenly Has Dandruff! (March 30, 2026)

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

Your Cat Keeps Vomiting After Eating: Here’s What’s Going On

Cats vomit. It’s one of the less glamorous facts of life with a feline, and most cat owners have cleaned up more than...

Ask Dr. Paola – Help! My Cat Gets Diarrhea from Wet Food! (March 23, 2026)

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

Cat Shampoo Alternatives That Are Already in Your House

If your cat has ever gotten into something disgusting and you’ve found yourself without cat shampoo, we’re here to help. Before you panic...

More related

How to Harness Train a Cat: 10 Vet-Verified Tips & Tricks

Most cats enjoy being outside as it gives them fresh air and allows them to practice the hunting sequence they were born to...

Baytril (Enrofloxacin) for Cats: Our Vet Explains Uses, Doses, & Side Effects

“Baytril” is the brand name of one of Bayer’s veterinary use medications. The active ingredient of Baytril is enrofloxacin, an antibiotic that belongs...

The Kitten Clues That Tell You Exactly How Old They Are

If you ever find a tiny kitten, or maybe you just brought home a “two-month-old” from a shelter, but something feels off about...

15 Easy DIY Cardboard Cat Scratcher Plans To Make Today (With Pictures)

Cats aren’t hard to please creatures. All they want is a tasty treat now and then, interactive toys to challenge their minds, a...

Keep reading

Are String of Turtles Toxic to Cats? Vet-Reviewed Safety Tips & Facts

If you’re a cat parent and plant enthusiast, you know that it’s vital to choose your plants according to your liking and while considering your feline’s safety. Unfortunately, many common houseplants are toxic to cats, which is why you need...

Can Cats Fall in Love with Each Other or Humans? Vet-Reviewed Feline Feelings

In all honesty, we don’t know how cats feel. We can’t ask them if they’re in love, and no scientific test can measure what a cat is feeling. Also, the definition of love is hard to agree upon! We do...

cat looking man's chin

Does Sevin Dust Kill Fleas on Cats? Vet-Verified Risks & Safety Info

Sevin Dust is an insecticide with active ingredients, including carbaryl, bifenthrin, and zeta-cypermethrin. It is commonly used in garden spaces to kill unwanted pests. Sevin Dust should never be used directly on your cat, it is highly toxic to cats....

vet holding magnifying glass searching cat fleas

Why Is My Cat Licking Everything all of a Sudden? 5 Vet-Reviewed Reasons

Cats have amazing tongues; they’re full of special powers that we can’t even begin to understand. Kitties use their tongues to do everything from clean themselves to explore the world. If your cat is suddenly going crazy when it comes...

Black cat licking a woman's toes

Can Cats Eat Bacon? Vet-Reviewed Facts & FAQ

It’s not a secret that bacon isn’t a particularly healthy food. We often think of bacon as a cut of meat not dissimilar to a steak or pork chop, but it’s not. Bacon is heavily processed, as it goes through...

Can Cats Eat Bacon

Can Cats Eat Wheat? Vet Approved Nutrition Facts & FAQ

Cats are always interested in eating, and it can be tempting to share food with these furry family members. But this isn’t always healthy for them, depending on what you’re eating. Cats may want to eat your food, but that...

Can Cats Eat Wheat

Cat Private Parts: Vet-Verified Facts & FAQ About Feline Genitals

While most of us like to show our cats the same privacy we hope for ourselves when it comes to our pet’s private areas, there are some important things to watch out for, so it’s important to be familiar with...

A closeup shot of a brown cat licking its genital

Can You Catch a Cold From a Cat? Vet-Verified Facts & Info

Once cold and flu season hits, most people find themselves feeling pretty crummy at some point. As soon as one person in the household goes down with a fall or winter cold, it seems like only a matter of time...

teenager cat owner cuddling with pet cat

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.