8 Signs Your Cat Is in Pain and Hiding It

Honestly, your cat could be in pain right now, and you’d never guess it. Don’t feel bad — cats are world-class at hiding discomfort, and it’s not because they’re dramatic. It’s survival.

Take my cat Mochi. For two weeks, she seemed perfectly fine: eating, napping, supervising me from the bookshelf. The only clue was that she’d stopped sleeping on my chest. Then one morning she vomited twice and hid under the bed. The vet found a urinary tract infection that had been building for a while. Two days of antibiotics fixed her right up, but I still kick myself for missing the early signs.

In the wild, a cat that looks sick becomes a target for predators. So evolution hardwired felines to mask pain until it’s almost impossible to hide. And that’s a problem for owners, because by the time the signs are obvious, the problem has often been brewing for weeks or months.

But here’s the thing: the signs are there. You just have to know where to look. And once you do, you can catch problems early, when they’re cheaper to treat and easier to fix. Let’s get into it.

Why cats hide pain like tiny, furry spies

Cats are predators, but they’re also prey for bigger animals. Showing weakness in the wild gets you eaten. That’s why your 9-pound house panther has inherited a powerful instinct: never let them see you hurt.

That instinct is exactly why vets rely on tools like the Feline Grimace Scale. It’s a scoring system that reads pain from a cat’s face. A 2019 study in Scientific Reports found that ear position, eye squinting, muzzle tension, and whisker position can reliably reveal how much pain a cat is in. Your cat can’t tell you where it hurts, but its face absolutely can.

And here’s the uncomfortable part: cats can hide serious conditions like dental disease, arthritis, kidney failure, and urinary tract infections for months at a time. The average cat owner misses the early clues because they don’t look like “pain” at all. They look like “a slightly different cat.”

Chronic pain is even trickier. It creeps in slowly, so both you and your cat adjust to the new normal without noticing. That’s how a cat ends up living with arthritis for years before anyone realizes.

8 signs your cat is in pain (and hiding it)

1. They’re suddenly hiding more

Every cat loves a good cardboard box. But there’s a difference between a nap in the laundry basket and disappearing for 20 hours a day.

Pain makes cats seek out dark, quiet, hard-to-reach spots. It’s self-protection, pure and simple. So if your cat used to sleep on your bed and now lives under the couch, that’s a red flag. Pay attention to where they hide and how long they stay there.

2. Litter box problems

A cat in pain often starts associating the litter box with discomfort. Suddenly peeing on the rug, pooping outside the box, or straining to go? Take it seriously.

Cats normally pee two to four times a day. If yours is making frequent trips with little result, or crying inside the box, that’s a trip to the vet. Urinary issues are especially urgent in male cats. A blocked bladder can turn fatal within 48 hours. That’s not a “wait and see” situation. That’s a vet visit today.

3. Eating less, or not at all

Cats with dental disease, mouth pain, or nausea often go off their food. Watch for the cat who sniffs dinner and walks away, or who cries at the bowl without eating.

A cat that hasn’t eaten for 24 hours should trigger a vet call. Cats are prone to hepatic lipidosis, a liver condition that develops when they stop eating. The longer they go without food, the harder recovery gets. PetMD’s guide to appetite loss in cats breaks down the possible causes in plain language.

4. Changes in meowing

Some cats get louder when they hurt. Others go silent. Either shift is worth noticing.

Pain-related vocalization can sound like a low moan or constant yowling, especially at night. A hiss when you touch a certain spot is another tell. But the quieter cats are easy to miss. If your chatty feline has gone mute, that’s not peace and quiet. That’s a clue.

5. Hunched posture and a tucked tail

A cat in pain often sits in a tight ball, head low, tail wrapped around its body. The “meatloaf” position, where the cat lies flat with all four paws tucked, is a classic pain posture.

Now compare that to a relaxed cat: sprawling on its side, belly exposed, tail loose. If your cat looks like it’s bracing for something, it probably is.

6. Grooming changes, in either direction

Over-grooming is common in cats with joint or abdominal pain. They lick the sore area obsessively, sometimes to the point of bald patches.

But some cats stop grooming entirely. A matted, greasy coat can signal that it hurts to move or twist. One of my clients had a long-haired cat whose back fur turned into dreadlocks. Turned out she had severe arthritis in her spine. She was 12 years old, and the grooming change was the only visible sign for weeks.

7. Sudden personality shifts

This is where cats really fool us. A painful cat can turn aggressive, hissing when you touch a sore spot. Or the opposite: a normally independent cat becomes clingy and follows you everywhere.

In my experience, sudden crankiness is the sign owners most often wave off as “my cat is just grumpy.” But cats don’t change personality for fun. If your sweet cat has turned into a hissing machine, pain is a very real possibility.

8. Less jumping, less playing

Arthritis is massively underdiagnosed in cats. A classic study found that 90% of cats over age 12 show radiographic evidence of joint disease, even though many of them never limp or cry. You can browse the research on PubMed if you want the details.

Watch how your cat navigates the house. Do they hesitate before jumping on the counter? Do they miss the landing? Are they sleeping more and playing less? These small changes are often the earliest signs of joint pain.

Normal cat vs. cat in pain: quick comparison

When to call the vet (and when to sprint)

Some signs are emergencies. Call your vet immediately if your cat can’t urinate or strains to pee, breathes with an open mouth or fast shallow breaths, has a bloated hard belly, or suddenly can’t stand.

For everything else, a same-week appointment is reasonable. A standard exam runs about $45 to $75 in most areas, and catching a problem early almost always costs less than treating it late. If you don’t have a regular vet yet, now’s the time to find one. Ask friends, read reviews, and pick a clinic that treats cats calmly. Having a relationship before an emergency makes everything easier.

But trust your gut. I think that’s the most underrated tool any owner has. You know your cat better than anyone. If something feels off, it probably is.

How to help a cat in pain at home

While you’re waiting for the vet, a few things can make your cat more comfortable. Set up a quiet room with soft bedding, food and water close by, a low-entry litter box, and a corner away from household chaos. A heated cat bed works wonders for older cats with joint pain; my own 14-year-old tabby, Mochi, basically lives in hers during winter.

Now the part that could save your cat’s life: never give your cat human pain medication. Acetaminophen is toxic to cats. So are ibuprofen and naproxen. A single pill can kill a cat. The ASPCA’s Animal Poison Control page lists what’s dangerous and what to do if your cat eats something it shouldn’t.

If the vet diagnoses arthritis, ask about joint supplements. Products like Cosequin or Zesty Paws contain glucosamine and chondroitin, and plenty of owners report visible improvement within a few weeks. Combined with weight management, that’s often enough to get an older cat jumping again.

And one more thing: keep a simple log of what you notice — when they eat, how often they use the box, which behaviors changed. That record is gold for your vet, and it takes two minutes a day.

FAQ

How can I tell if my cat is in pain?

Look for changes: hiding more, litter box accidents, eating less, vocal changes, hunched posture, grooming shifts, personality swings, and reduced jumping. If you spot two or more of these at once, call your vet. The Feline Grimace Scale, described in a 2019 study in Scientific Reports, can help you recognize facial signs like squinted eyes and flattened ears. And remember: cats purr when they’re happy, but they also purr when they’re stressed or in pain. Don’t let a purring cat convince you everything is fine.

Do cats hide pain?

Yes, deeply. It’s a survival instinct inherited from their wild ancestors. Cats evolved to mask pain because showing weakness makes them vulnerable to predators. That’s exactly why subtle behavior changes matter so much: they’re often the only clues you get. Veterinary researchers have found that owners regularly miss pain that’s obvious on X-rays, which tells you how good cats are at this.

What can I give my cat for pain at home?

Nothing, without vet approval. Human painkillers like acetaminophen and ibuprofen are toxic to cats and can be fatal. Wait for your vet’s guidance. In the meantime, keep your cat comfortable with soft bedding and warm spots, and avoid handling sore areas.

Sources:

• PetMD Cat Care Guide — petmd.com/cat
• American Veterinary Medical Association — avma.org
• American Kennel Club — akc.org

Related: What to Do If You Find a Stray Dog or Cat

Disclaimer: This article is for informational purposes only and does not constitute veterinary advice. Always consult with a licensed veterinarian for medical concerns about your pet.