What Causes Constipation In Cats?

Updated on 4/24/2026

Constipation in cats is more common than most people realize. If you have ever watched your cat struggle in the litter box, you know how heartbreaking it can be.

Maybe you notice they have not pooped in a few days. Or you see them straining, going in and out of the litter box with little success.

You take them to the vet, they get relief, and everything seems fine… for a while.

Then it happens again.

So what causes this frustrating cycle of constipation in cats?

Quick Answer: What Causes Constipation in Cats?

The most common causes of constipation in cats are:

Dehydration
Lack of movement or exercise
Low-moisture diets, especially dry kibble

These factors often work together, creating a cycle that continues if the root cause is not addressed.

The #1 Cause of Constipation in Cats: Dehydration

Cats are designed to get most of their hydration from their food, not from a water bowl.

When cats are fed primarily dry kibble, they are not getting enough moisture to properly support digestion. This can lead to dry, hard stools that are difficult to pass.

We completely understand that kibble can feel like the easiest or most affordable option. But over time, a lack of moisture in the diet can contribute to ongoing digestive issues and even higher veterinary costs.

Simple Ways to Add Moisture to Your Cat’s Diet

If kibble is part of your routine, there are still easy ways to support hydration:

Add a high-quality pet bone broth to meals
Incorporate canned or fresh food daily
Mix water into food gradually to increase moisture content

Even small changes can make a big difference in stool consistency and overall digestive health.

One of our favorite ways to do this is by adding pet bone broth. It is simple, effective, and most cats love it. It helps increase moisture intake while also supporting digestion and making meals more appealing, especially for picky eaters.

Lack of Movement Can Slow Everything Down

Just like in humans, movement plays a huge role in digestion.

Sedentary cats are more prone to constipation because their digestive system is not being stimulated regularly. Encouraging daily activity helps keep things moving naturally.

Easy Ways to Get Your Cat Moving

Schedule daily playtime at the same time each day
Use wand toys to mimic prey and engage their instincts
Toss small toys or balls for them to chase

This not only supports digestion but also helps reduce stress, prevent obesity, and strengthen your bond with your cat.

Why Daily Play Matters for Overall Health

Regular exercise does more than just help with constipation.

Daily activity supports both mental and physical well-being in cats by:

Promoting healthy weight management
Reducing stress and anxiety
Supporting natural behaviors
Contributing to a longer, healthier life

A consistent routine gives your cat something to look forward to and helps create a more balanced, happy environment.

The Real Root of Recurring Constipation

When constipation keeps coming back, it is usually not just a one-time issue.

It is often the result of:

Chronic dehydration – usually caused by low-moisture diets
Lack of daily movement
Diet lacking in fiber
Underlying health issues

Addressing these root causes is key to breaking the cycle instead of just managing symptoms.

You want to rule out any underlying medical issues such as an obstruction. If you see them hiding or see other symptoms such as loss of appetite, vomiting or crying please get them to a vet asap!

Adding a little fiber into the diet daily can also be beneficial. As obligate carnivores, they don’t need much but a little can really help with digestion.

If your cat struggles with recurring constipation, adding moisture back into their diet can be one of the most impactful changes you make.

A simple daily addition like pet bone broth can help support hydration, digestion, and overall gut health in a way that works with your cat’s natural biology.

Final Thoughts

Constipation in cats is often a sign that something deeper needs attention.

In many cases, it comes down to two simple but powerful factors: hydration and movement.

By adding more moisture to your cat’s diet and encouraging daily activity, you can support healthy digestion and help prevent that frustrating cycle from coming back.

FAQ: Constipation in Cats

How long can a cat go without pooping?

Most cats should have a bowel movement every 24 to 48 hours. If it has been more than two to three days, it is time to take a closer look.

Is constipation in cats serious?

It can be. Occasional constipation may resolve quickly, but chronic constipation can lead to more serious conditions like megacolon if left unaddressed.

Can diet really make that big of a difference?

Yes. Diet plays one of the biggest roles in digestive health. Increasing moisture in the diet is often one of the most effective changes you can make.

Should I stop feeding kibble completely?

If possible, yes. If not, any step toward increasing moisture helps. Even adding wet food or pet bone broth daily can significantly improve digestion.