Signs Your Dog Is in Pain: 12 Subtle Signals

Dogs are hardwired to hide pain. In the wild, showing weakness makes an animal a target for predators. Your living room is not the wild, but your dog's instincts don't know that. By the time most owners realize their dog is hurting, the pain has often been going on for days or even weeks.

Cooper tore a toenail last year and barely limped. I only noticed because he was licking his paw more than usual at night. When I checked, the nail was half-detached and bleeding. He'd been walking on it all day without a single whimper. That's when I realized how carefully you have to watch.

The 12 Subtle Signs

1. Changes in Breathing

Shallow, rapid breathing or heavy panting when your dog hasn't exercised and isn't hot is a classic pain indicator. Dogs in pain often pant because their stress hormones are elevated, increasing heart rate and respiration. If your dog is panting at rest, especially at night, pay attention.

2. Reduced Appetite

A dog who suddenly isn't interested in food is telling you something. While a skipped meal isn't always an emergency, two or more missed meals in a row, especially in a dog who normally inhales their food, warrants investigation. Dental pain, abdominal pain, and nausea are common causes.

3. Excessive Licking or Grooming

Dogs lick where it hurts. If your dog is obsessively licking a specific area, a paw, a joint, their belly, they may be trying to soothe discomfort. Licking releases endorphins, which provide temporary pain relief. Look for reddened, damp patches of fur as evidence of chronic licking.

4. Posture Changes

A dog hunching their back, tucking their tail, or holding their head lower than usual may be compensating for pain. Dogs with abdominal pain often adopt a "prayer position", front legs stretched forward, rear end in the air, trying to relieve pressure on their belly.

5. Reluctance to Move

A dog who hesitates before jumping onto the couch, avoids stairs, or is slow to get up after lying down may be dealing with joint pain, arthritis, or a spinal issue. This is especially common in older dogs and breeds prone to hip dysplasia or IVDD.

6. Behavioral Changes

Pain changes personality. A normally social dog may become withdrawn and hide. A gentle dog may snap or growl when touched. An independent dog may become clingy and needy. Any sudden, unexplained personality shift should make you consider pain as a possible cause.

7. Whimpering or Vocalization

Some dogs do vocalize when in pain, whimpering, whining, yelping, or groaning. But this is actually less common than you'd think. Many dogs suffer in complete silence. If your dog is vocalizing, the pain is likely significant enough that they can't suppress it.

8. Restlessness and Inability to Settle

Pacing, repeatedly standing up and lying down, shifting positions constantly, or circling before settling are all signs of discomfort. A dog who can't find a comfortable position is often dealing with pain, especially orthopedic or abdominal pain.

9. Changes in Eyes

Pain affects the eyes in two ways. Dogs with body pain often have dilated pupils and a tense, squinting expression. Dogs with eye pain specifically will squint, paw at their face, have redness or discharge, or avoid bright light. Bloodshot eyes can also indicate pain elsewhere in the body.

10. Guarding Behavior

If your dog tenses up, moves away, or flinches when you touch a specific area, they're guarding a painful spot. You might notice them shifting their weight off one leg, protecting their belly, or pulling away when you handle their ears. Approach gently and note which area triggers the response.

11. Changes in Sleep Patterns

Pain disrupts sleep. A dog who normally sleeps through the night but is now restless, panting, or repositioning frequently may be in pain. Conversely, some dogs in pain sleep more than usual because rest is the only comfortable position, excessive sleeping can be just as telling as not sleeping enough.

12. Shaking or Trembling

Trembling that isn't related to cold or excitement can indicate pain, nausea, or poisoning. Small dogs tremble more visibly, but you can feel trembling in larger dogs by placing your hand on their body. If trembling is paired with any other signs on this list, a vet visit is in order.

What to Do When You Suspect Pain

• Document what you're seeing. Take a video of any unusual behavior, posture, or movement. Your vet may not see the same behavior during an exam, and video evidence is incredibly helpful
• Don't give human medications. Ibuprofen, acetaminophen, and naproxen are all toxic to dogs. Even aspirin should only be given under veterinary supervision
• Keep your dog calm and comfortable. Reduce activity, provide a soft bed, and avoid handling painful areas
• Schedule a vet appointment. For non-emergency pain signs, a regular appointment within a day or two is usually fine
• Go to the emergency vet if: Your dog is crying out in pain, has a distended belly, can't stand or walk, is panting severely and can't settle, or you suspect they've eaten something toxic

Related Reading

If you've noticed specific symptoms, our detailed guides on heavy panting, diarrhea, and hair loss can help you narrow down the cause. For keeping your dog healthy long-term, our vaccination schedule and insurance comparison guide are worth reviewing.