I'll never forget the day I realized my cat Oliver had been hurting for months and I missed every single sign. He was 11, sleeping more, a little grumpy when I picked him up. I kept telling myself he was "just getting older." By the time I finally took him in, the vet found severe arthritis in both hips and a dental infection so bad it had started eating into his jawbone. That vet visit set me back $340 and the guilt was way worse than the bill.
Here's the thing nobody tells you: pets are wired to hide pain. In the wild, showing weakness makes you prey. So your dog or cat will suffer in silence, sometimes for years, while you assume everything's fine. I'm not a vet, just someone who learned this the hard way. But if there's one thing I want you to take from this: by the time you see obvious signs, your pet has probably been hurting for weeks or months.
1. When They Start Acting Different
This was the first thing I noticed with Oliver, and I completely blew it off. Your friendly golden retriever starts hiding under the bed. Your lap cat suddenly won't sit on you. Or — and this one's sneaky — your pet gets more clingy, following you everywhere, wanting constant contact.
Both mean the same thing: something hurts. Withdrawal is "don't touch me." Clinginess is "help me." I had a friend whose Lab started sleeping in the bathtub — the cool tile felt good on her joints. She thought it was cute. It wasn't cute. It was arthritis.
2. How They Eat
Watch your pet eat. Not just if they eat, but how. Dropping kibble from their mouth? Chewing on one side only? Hesitating at the bowl and walking away? I used to think Oliver was just being picky. Nope. He had a tooth root abscess that had been festering for months.
Dental disease affects something like 80% of dogs and 70% of cats by age 3. Crazy, right? Yet most of us don't connect bad breath with pain. That fishy, rotten smell? That's infection. A dental cleaning runs $300–$1,200 depending where you live. Expensive, yeah. But leaving it leads to abscesses, tooth loss, and bacteria that damage the heart and kidneys. I've seen it happen.
3. The "Prayer Position" Thing
Hunched back, front legs down, rear end up — vets call it the "prayer position." It's a sign of abdominal pain — pancreatitis, bloat, intestinal blockage. If you see this, especially in a dog, don't wait. Same-day vet. I'm serious.
Also look for a tucked belly, an arched back all the time, or a head held lower than normal. They're not relaxing — they're splinting a painful area, trying not to move.
4. The Stiffness That Creeps Up On You
Does your dog take a few stiff steps before warming up? Does your cat hesitate before jumping onto the couch, then miss the landing? I told myself Oliver was "slowing down." He wasn't slowing down. His hips hurt.
Watch for: slow to stand, reluctance with stairs, bunny-hopping with the back legs (classic hip dysplasia), head bobbing when walking, less interest in walks or play. Joint supplements (I use Cosequin, about $35 a month on Chewy) can slow arthritis, but only if you start early. By the time they're limping, the damage is already done. Oliver was limping for maybe a week before I noticed — and the X-rays showed years of damage.
5. Their Face
This one blew my mind when my vet showed me. There's a thing vets use called a grimace scale. In a comfortable pet: almond-shaped eyes, soft expression, relaxed whiskers. In a painful pet: squinty or staring eyes, flattened ears, tense muzzle, whiskers pulled back tight.
Dogs sometimes pant excessively even when resting, or pull their lips back in what looks like a "smile." It's not a smile. If the eyes look hard or sunken, something is wrong. I look at Oliver's old photos now and I can see it — that tightness around his eyes. I just didn't know what I was looking at.
6. The Sounds (And the Silence)
Obvious stuff — yelping, hissing, growling — gets people to the vet. Good. But what about the quiet ones? A low groan when lying down. A grunt when getting up. A cat who used to purr constantly but goes silent. Or the opposite: a cat who purrs more (purring releases endorphins — it's self-soothing, not happiness).
Unusual silence is such an easy one to miss. A normally vocal dog who goes quiet. A cat who stops greeting you at the door. I've had people tell me, "He just seemed so peaceful." Then the X-rays showed advanced arthritis. That "peace" was suppression.
7. Grooming — Too Much or Not Enough
Cats are obsessive about grooming. If your cat has a dull, greasy, matted coat, they're probably in pain — they can't twist around to groom because their back or hips hurt. Same with dogs who look unkempt, especially around the rear.
On the other side: obsessive licking of one spot. A wrist, a hip, a patch of belly. Licking releases endorphins, so they're basically self-medicating. Oliver spent hours licking his hip. I thought it was a weird habit. It was arthritis. I spent about $200 treating the hot spot before we figured out the real problem.
8. Sleeping More (But Not Better)
Pain is exhausting. Many painful pets sleep 2–4 hours more per day. But it's not restful — they wake up a lot, change positions constantly, never settle into deep sleep. You might notice your dog circling forever before lying down, or your cat moving from spot to spot all night.
Other pets can't get comfortable at all. Restlessness, pacing at night, panting without exercise, getting up and down repeatedly — they're searching for a position that doesn't hurt. I got Oliver an orthopedic bed with egg-crate foam, about $45 on Amazon. It helped a little. But if your pet is switching spots 5+ times a night, that's a vet conversation, not a bed conversation.
9. When Sweet Turns Sour
The sweetest dog who suddenly growls when you touch their back. The cat who hisses when picked up. Temperament changes are pure communication: "That hurts, stop."
Don't punish this. Your pet isn't being "bad" — they're in pain and this is literally the only way they can tell you. If you scold them, they learn to hide the pain even more. Instead, notice exactly where they reacted (left hip? lower back? mouth?) and tell your vet. It's a map to the problem.
10. Bathroom Accidents
A house-trained dog who starts having accidents. A litter-box-perfect cat who suddenly goes on the rug. Most people assume it's spite or a behavior problem. It's almost never that. Squatting to go to the bathroom is physically demanding. A pet with arthritis in the hips or spine may not be able to squat fully, so they leak or don't empty completely. A pet with a UTI may strain or cry when they go.
Cats especially: high-sided litter boxes are impossible for a painful cat to climb into. If your cat is going outside the box, check two things first: a vet visit for a urinalysis (around $50–$100), and switch to a low-entry box or cut a door into a storage tote. Nine times out of ten, it's pain, not malice.
The Pain Scale Vets Use
Veterinarians assess pain on a 0–10 scale. Here's what it looks like in plain English so you can describe what you're seeing:
- 0: Comfortable. Normal everything.
- 1–3 (Mild): Subtle. A little quieter. Slightly stiff. Still eating. Most people notice nothing.
- 4–6 (Moderate): Obvious changes. Limping, reduced appetite, hiding, vocalizing. This is where most pets live for months.
- 7–10 (Severe): Constant distress. Crying, not eating, can't rest, trembling, guarding a body part. Emergency vet. Now.
Oliver's Story, Four Years Later
Oliver was a 12-pound tabby with giant green eyes and a purr like a tiny motorcycle. For about six months, he slept more, stopped sleeping on my chest (too painful for his hips), and kept missing the jump to the windowsill. I told myself he was "slowing down." My vet gently suggested arthritis. I brushed her off. "He's fine," I said. "He still eats."
By the time I agreed to X-rays, the damage was bad: advanced arthritis in both hips, bone spurs along his spine, and that tooth root abscess that had been festering for months. The guilt was horrible. He'd been hurting every single day. And I missed it because I was looking for the wrong things — limping, crying, obvious stuff. What I got instead was subtle. Quiet. Easy to explain away.
Oliver lived another four happy years on joint supplements, pain meds, and dental care. But those four years could have started six months earlier if I'd known what to look for. That's why I'm writing this. I don't want you to make the same mistake I did.
Please Don't Give Them Your Meds
I cannot say this strongly enough: Ibuprofen (Advil, Motrin) and acetaminophen (Tylenol) can kill your pet. A single 200mg ibuprofen can cause kidney failure in a 10-pound dog. One acetaminophen can destroy a cat's red blood cells in hours. I'm not exaggerating — it's often fatal even with emergency treatment.
I know. Your pet is hurting, the vet is closed, and you want to help. Don't. Even "dog-safe" meds from the pet store can be dangerous if you don't know what you're doing. The only safe option is a vet exam and prescription. Exam cost: $50–$100. The alternative... don't want to think about it.
Call your vet's emergency line instead. Many will advise you over the phone. Some offer tele-triage for $20–$40. Just don't reach into your own medicine cabinet.
What I'd Do If I Were You Right Now
If any of this sounds familiar — if your pet is showing even one of these signs — here's what I'd do:
- Call the vet. Say "I'm worried about pain" when you book.
- Take videos of the behavior at home.
- Write down when it started and how often it happens.
- Gently run your hands over their back, hips, legs, belly. Note any flinches, heat, or swelling.
- Switch to a low-entry litter box or add ramps to furniture if they seem stiff.
Your pet can't tell you they're hurting. But they're telling you in every way they can. It's up to us to pay attention. I learned that the hard way so hopefully you don't have to.
