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How Long Can a Cat Go Without Pooping? Vet-Approved Causes & Solutions

Vet approved

	Dr. Paola Cuevas Photo

Reviewed & Fact-Checked By

Dr. Paola Cuevas

MVZ (Veterinarian)

The information is current and up-to-date in accordance with the latest veterinarian research.

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Cats are extremely routine-based animals, and if you watch them long enough, you’ll notice that they do certain things at the same time each day and can be accurate down to the minute. This is so true that doctors recommend giving your cat a treat at the same time you need to take your medicine because the cat will come looking for its treatment at the same time the next day and every day after, helping you to remember to take your pills.

Because they are so routine-based, it won’t take long to notice if your cat hasn’t used the litter box in a while. If this has happened to you, you are probably wondering how long your cat can go without pooping. The answer is about two days. Any longer than that, and it could be a sign that there is a problem, so continue reading, and we’ll talk more about what the problem can be and how you might be able to remedy it before you need to go to the vet.

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How Long Can Cats Hold Their Poop?

The answer to how long a cat can hold its poop and pee depends largely on the cat and what it’s been eating or drinking. Larger cats might go less often than a smaller cat, and if it eats smaller meals throughout the day, it will go less often than if it eats one big meal at a time. Age, stress level, and type of food can also affect how frequently your cat visits the litter box. However, if it’s already been two days, it’s time to start getting concerned, and it means your cat is probably constipated.

kitten in a litter box
Image by: Africa Studio, Shutterstock

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Can Constipation Kill My Cat?

There are three types of constipation, and we’ll need to look at each one to know if they are deadly for your cat.

Cat Constipation

It might not sound like fun, but it’s important to keep an eye on your litter box as you clean it each day. The poop should be brown, well-formed, and sausage-shaped. If the poop is lighter colored and loose or runny, your pet is experiencing diarrhea, which could be a sign of a bacterial infection, like salmonella. Many cats are lactose intolerant but love milk and yogurt, which can also lead to runny poop.

On the other side, if the poop is dry, hard, lumpy, cracked, or in small pieces, then your cat is suffering from constipation, and you need to get them hydrated before the problem becomes worse. It’s common for cats of all ages to become constipated since many cats don’t like to drink water, but it’s more common in cats more than 8 years old and overweight cats. Luckily, constipation can often be treated, many times, without needing medical attention.

constipated cat
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Cat Obstipation

Obstipation is a more serious condition where the fecal matter has blocked the colon and become compacted. Obstipation will require medical treatment from a veterinarian, and letting this condition go too long can result in the death of your cat.

Cat Megacolon

Megacolon is another serious condition that can result in a cat’s death if it doesn’t receive medical treatment. Cats with megacolon have nerve and muscle damage to the colon. The colon does not pass the fecal matter to the rectum as it would normally and fecal matter starts accumulating and expanding this organ’s diameter up to 3 or 4 times its normal size. This condition is very painful for your cat and requires medical intervention as it can be fatal. Unfortunately, megacolon tends to become a recurrent problem in cats suffering it.

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What Home Remedy Can I Give My Cat for Constipation?

Since there is no way to check for megacolon or obstipation without visiting a vet, there are a few things you can try to see if you can get your cat in the litter box again. If your cat hasn’t gone in more than a day or you notice the crumbly poops we mentioned earlier, we recommend trying one of these remedies. If you don’t see results by the third day, we recommend calling the vet. If your cat is experiencing other symptoms, like a refusal to eat or lethargy, please do not wait, and visit the veterinarian as soon as possible.

Wet Cat Food

If you notice your cat frequently has crumbly or broken poops, you can try to alleviate it by adding more moisture to their diet. One of the best ways to hydrate your cat is to give them canned food instead of crunchy kibble. Wet food has high moisture content, so it’s a great tool for constipation. However, keep in mind that when feeding wet food to your cat, regularly brushing their teeth is very important, especially if they are already prone to dental problems.

tabby cat eating wet canned food
Image Credit: Veera, Shutterstock

Cat Fountain

Cat’s usually don’t like to drink standing water. It may be because standing water collects germs in the wild, and it can also be hard for them to see. One solution is to get your cat a water fountain. Water fountains create movement so the cat will hear it and come to look at what it is and will often drink much more than it ordinarily would.


You can also help keep your cat’s digestive system regulated to add fiber to the diet. Foods that contain real fruits and vegetables in their ingredients will provide your cat with extra fiber. If your cat will eat it, plain boiled pumpkin puree or organic canned pumpkin can add fiber and regulate your cat’s bowel movements. Alternatively, some cat food comes with added pumpkin in the recipe.

Psyllium Husk

Psyllium husk is the crushed husks of the Plantago ovata plant’s seeds. This fiber expands and becomes a gel-like substance when it has contact with water or moisture. It works by softening the stool and helps in lubricating the gastrointestinal tract, and the added bulk also encourages bowel movements, making it a great natural laxative. Start slowly adding ¼ teaspoon of plain flavorless and natural psyllium husk to your cat’s wet food. You can gradually increase that amount to a maximum of 2 teaspoons twice a day. It is important that your cat drinks water during this treatment.


We recommend only giving medications to your pet after speaking with a vet to get the proper dosage. Your doctor will need your cat’s age and weight to prescribe the appropriate dose of any medication. Too much of a commercial laxative can harm your cat.

woman hand giving to the cat special pills
Image Credit: Veera, Shutterstock

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Summary: How Long Can a Cat Go Without Pooping

If your cat hasn’t used the litter box in more than two days, we recommend calling the vet to get a recommendation. Constipation can become serious pretty quickly, so it’s best to stay on top of it. Usually, your cat will show dehydration signs, like cracked or broken poop, which can clue you in that a problem is developing. If you see these symptoms, we recommend purchasing high-fiber dry cat food and purchasing a fountain to convince your cat to drink more water. If you already do these things, we recommend adding some pumpkin to its diet and temporarily switching to wet food to see if things improve.

We hope you have enjoyed reading over this guide and learned some new facts that can help you improve your pet’s health. If we’ve helped you keep your pet regular, please share this guide to how long your pet can go without pooping on Facebook and Twitter.

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Featured Image: Stefano Garau, Shutterstock