One of the biggest myths I hear in pet ownership is:

"If they were really in pain, I'd know."

It makes sense.

We picture pain as something obvious.

Crying.

Limping.

Whimpering.

Refusing to move.

And yes, animals in severe pain may show those signs.

But after more than 30 years in veterinary medicine, I can tell you this clearly:

Pets often hide pain remarkably well.

Cats are particularly famous for it, but dogs can be incredibly subtle too.

They adapt.

They change how they move.

They stop doing things that hurt.

They sleep more.

They become quieter.

And because these changes often happen slowly, families adapt right along with them.

One day you suddenly realize your dog hasn't jumped onto the couch in six months.

Or your cat hasn't climbed to the top of the cat tree in a year.

That's why understanding subtle signs of pain matters so much.

At PetLovers United, we want owners to recognize discomfort before suffering becomes obvious.

Here are seven signs your pet's pain may be getting missed.
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This is one of the biggest ones.

Owners frequently tell me:

"He's just getting old."

But aging itself isn't a disease.

If your dog no longer wants to take the same walk or your cat has stopped jumping onto the counter, ask why.

Pain may cause pets to:

Dogs with arthritis don't always limp.

Cats with arthritis very often don't limp in the way owners expect.

Instead, they change their behavior to avoid movements that hurt.

Watch the transitions

Some of the best clues happen when your pet moves from one position to another.

Watch them:

Those few seconds can tell you a tremendous amount about comfort.

Dogs and cats sleep plenty.

So increased sleep can be easy to dismiss.

The more useful question is:

What aren't they doing anymore?

Maybe your dog used to meet you at the door but now stays in bed.

Maybe your cat used to sit with the family every evening but now sleeps in another room.

Perhaps your pet still participates—but only when highly motivated.

Pain can make movement less appealing.

So pets may conserve energy by sleeping more or choosing not to participate.

Watch for:

Sleeping more isn't proof of pain.

But a meaningful change from your pet's normal deserves attention.
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A dog who suddenly growls when touched isn't necessarily becoming "mean."

A cat who swats when picked up isn't necessarily becoming "grumpy."

Sometimes they're saying:

"That hurts."

Pain can reduce tolerance.

You may notice:

This is especially important when the behavior is new.

If your normally affectionate pet suddenly doesn't want their back, hips, mouth, ears, or abdomen touched, consider discomfort before labeling it a behavioral problem.

Don't punish the warning

Growling, hissing, swatting, and moving away are forms of communication.

Punishing those warnings doesn't remove the pain.

It may simply teach the animal to stop warning before escalating.

When behavior changes suddenly, ask:

"Why did this change?"
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Grooming can reveal a surprising amount about comfort.

In Cats

Cats in pain may stop grooming areas that have become difficult to reach.

You may notice:

A cat with arthritis, for example, may find twisting to groom the lower back or rear legs uncomfortable.

In Dogs

Dogs may do the opposite and repeatedly lick a painful area.

You might notice persistent licking around:

But excessive licking isn't specific to pain. Allergies, skin disease, anxiety, wounds, and other conditions can cause similar behavior.

That's why the underlying cause matters.
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This is a subtle sign I don't want owners to overlook.

A dog in pain may:

Owners sometimes assume this is anxiety—especially in senior dogs.

Sometimes it is.

But discomfort should also be considered.

Nighttime can make pain more noticeable because the pet has been lying still and joints may feel stiff when they reposition or rise.

Cats may be less likely to pant from routine discomfort, and panting or open-mouth breathing in a cat should be taken seriously, particularly if it occurs at rest or with breathing difficulty.
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Pain can affect appetite.

Dental pain is a classic example.

A pet with a painful mouth may:

But pain elsewhere in the body can also reduce interest in food.

The important point is that appetite loss has many possible causes, some of them serious.

Don't automatically assume a pet who stops eating is in pain—and don't assume they're simply being picky.

A meaningful appetite change deserves attention.

Cats require particular caution because prolonged poor food intake can create additional medical problems.
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Sometimes the biggest clue isn't physical at all.

It's personality.

Your independent cat suddenly wants to be on your lap constantly.

Your social dog begins hiding in another room.

Your playful pet becomes quiet.

Your easygoing dog becomes restless.

Your affectionate cat starts avoiding touch.

Pain can change behavior in both directions.

Some animals:

Others:

This is why one of the most valuable things you can know about your pet is their baseline normal.

You aren't comparing your dog with every other dog.

You're comparing today's dog with your dog six months ago.
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Usually, it isn't because owners aren't paying attention.

It's because chronic pain can develop very slowly.

Imagine your dog begins taking the stairs 5% slower.

You adjust.

A few months later, they hesitate before jumping into the car.

So you help them.

Then walks become shorter.

You decide they're getting older.

Eventually, the new behavior becomes normal to you.

There was never one dramatic moment.

That's how chronic pain can hide in plain sight.
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This is worth addressing directly.

A pet does not need to cry to be in pain.

Some animals vocalize when painful.

Many don't.

Instead, they adapt their behavior.

That's particularly important with chronic conditions such as osteoarthritis and dental disease, where discomfort may develop gradually.

Don't wait for crying before taking mobility, appetite, grooming, or behavior changes seriously.
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Instead of relying on one sign, look for patterns.

Ask yourself:

Mobility: Are they moving differently?

Activity: Are they doing less?

Sleep: Are their sleep patterns different?

Appetite: Has eating changed?

Grooming: Is their coat or grooming behavior different?

Personality: Are they interacting differently?

Comfort: Can they lie down and get back up easily?

Then document what you see.

Videos can be extremely useful.

Record your pet:

Animals sometimes behave differently in a veterinary hospital because of excitement, fear, or adrenaline.

Seeing what happens at home can give your veterinary team valuable information.
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Contact your veterinarian when you notice persistent or meaningful changes in:

You don't need to diagnose the source of pain yourself.

That's what your veterinary team is there to help determine.

The goal is simply to recognize:

"Something about my pet's normal has changed."
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Some painful conditions require immediate veterinary care.

Seek urgent care for signs such as:

When you're uncertain about urgency, contact your veterinarian or emergency veterinary hospital for guidance.

This is extremely important.

Do not give your dog or cat a human pain medication unless your veterinarian specifically instructs you to do so.

Common medications people keep at home can be dangerous or even life-threatening to pets.

Cats are particularly sensitive to several medications that humans use routinely.

Pain treatment needs to be selected based on:

Your veterinarian can determine which options are appropriate.
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One of the most encouraging changes I've seen during my career is how much veterinary pain management has advanced.

Today, depending on the patient and underlying condition, a pain-management plan may incorporate:

There isn't one universal "pain medication" that's right for every animal.

And pain management isn't always about prescribing a pill.

For a pet with arthritis, for example, improving traction at home, maintaining a healthy body weight, preserving muscle, modifying exercise, and providing appropriate medical pain management may all work together.

That's what multimodal pain management means:

We're approaching pain from more than one direction.
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Medical treatment should be guided by your veterinarian, but owners can also make the environment easier for pets with mobility challenges.

Depending on your pet, consider:​

These changes don't replace pain treatment.

They reduce some of the physical challenges your pet encounters throughout the day.
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"He's Just Getting Old."

Age may increase the likelihood of painful conditions.

But age itself doesn't mean your pet should simply live with discomfort.

"She's Still Eating, So She Can't Hurt."

Many painful animals continue eating.

Appetite is only one measure of well-being.

"He's Not Limping."

Chronic pain doesn't always produce an obvious limp.

Look for changes in function, not just lameness.

"She'd Cry If It Hurt."

Many animals don't.

Waiting for vocalization may mean waiting until pain is much more significant.

"I Don't Want Pain Medicine to Make Him Sleepy."

Side effects and risks are valid topics to discuss with your veterinarian.

But untreated pain also has consequences.

The goal is an individualized plan that balances comfort, function, safety, and quality of life.
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After more than 30 years of caring for animals, one of the things I wish I could teach every pet owner is this:

Pain doesn't always look painful.

Sometimes it looks like a dog who doesn't follow you upstairs anymore.

A cat who stopped sleeping on the windowsill.

A pet who doesn't greet you at the door.

A dog who takes an extra few seconds to stand.

A cat whose coat isn't quite as beautiful as it used to be.

Those changes are easy to explain away.

But they're worth noticing.

The goal isn't to become anxious about every change your pet makes.

It's to know their normal well enough to recognize when their life is quietly becoming smaller.

Because sometimes what we call "slowing down" isn't simply age.

Sometimes it's discomfort—and comfort is something we may be able to improve.


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