Recognizing Pain in Pets: The Silent Sufferers
Your dog can't say "my hip hurts." Your cat won't complain about dental pain. Hiding pain is hardwired into their survival instincts—in the wild, the animal who looks weak gets eaten.
This makes recognizing pain in pets one of the most important skills you can develop as a pet owner. Here's what to look for.
Why Pets Hide Pain
Evolutionary survival: Predators target sick and weak animals. Prey animals hide weakness to avoid being hunted. This instinct persists even in our safe homes.
Dogs: Pack animals who avoid showing vulnerability that might lower their status.
Cats: Both predator and prey, making them especially stoic.
By the time pets obviously show pain, it's often severe. Subtle signs appear long before obvious ones.
General Signs of Pain in Both Dogs and Cats
Changes in Activity
Decreased activity: Less enthusiasm for walks, play, or normal activities.
Reluctance to move: Hesitation before jumping, climbing stairs, or getting up.
Restlessness: Inability to get comfortable, pacing, repositioning frequently.
Lameness: Limping or favoring a limb.
Changes in Behavior
Hiding: Withdrawing to unusual places.
Aggression: Snapping or hissing when touched or approached.
Clinginess: Seeking more comfort than usual.
Personality changes: Normally social pets becoming withdrawn (or vice versa).
Changes in Eating/Drinking
Loss of appetite: Pain suppresses hunger.
Difficulty eating: Especially with dental pain—dropping food, chewing on one side.
Changes in water consumption: More or less than normal.
Physical Signs
Changed posture: Hunched, guarded, or tense.
Rapid breathing: At rest, without obvious cause.
Changes in eyes: Squinting, dilated pupils, dull expression.
Vocalization: Whimpering, growling, hissing, or unusual sounds.
Self-trauma: Licking, biting, or scratching at a specific area.
Signs of Pain Specific to Dogs
Facial Expression
Recent research has identified a "pain face" in dogs:
- Ears flat or back
- Tense muzzle
- Squinting eyes
- Furrowed brow
Body Language
Tail carriage: Tucked, carried lower than usual, or stiff.
Panting: Without exercise or heat.
Trembling/shaking: Without cold or excitement.
Stretching repeatedly: The "prayer position" (front legs down, rear up) often indicates abdominal pain.
Behavioral Signs
Reluctance during walks: Stopping, slowing, wanting to go home early.
Avoiding stairs: Hesitating or refusing.
Difficulty lying down: Circling many times, unable to get comfortable.
Not greeting you: A normally enthusiastic greeter who stays in bed.
Vocalizations
- Whimpering
- Groaning when lying down
- Yelping when touched or moving
- Growling when approached
Type-Specific Pain Signs
Joint/orthopedic pain:
- Limping, especially after rest
- Stiffness in the morning
- Reluctance to jump or climb
- Bunny-hopping (using rear legs together)
Abdominal pain:
- Prayer position (front down, rear up)
- Guarding belly
- Tensing when belly touched
- Splinting (shallow breathing)
Back pain:
- Arched back or reluctance to move spine
- Crying when picked up
- Reluctance to look up or down
- Inability to squat to urinate/defecate
Dental pain:
- Dropping food
- Chewing on one side
- Rubbing face on floor or furniture
- Bad breath (infection)
Signs of Pain Specific to Cats
Cats are ESPECIALLY good at hiding pain. Subtle changes matter enormously.
Facial Expression
The "cat grimace scale" identifies pain signs:
- Squinted eyes
- Flattened ears
- Tension in muzzle
- Whiskers forward and stiff
- Head below spine level
Body Language
Hunched posture: Sitting in a tight, small position.
Tense resting position: Not relaxed and stretched out.
Tail wrapped tightly: Around body when sitting.
Limited movement: Staying in one spot far more than usual.
Behavioral Signs
Hiding: In unusual places, for extended periods.
Loss of litter box habits: Pain can cause avoidance of the box.
Not grooming: Unkempt, greasy fur indicates a cat who doesn't feel well.
Decreased jumping: Avoiding favorite high spots.
Personality changes: Affectionate cats becoming withdrawn (or withdrawn cats seeking comfort).
Vocalizations
Cats often become MORE quiet when in pain, but may:
- Growl or hiss when touched
- Make unusual sounds when moving
- Yowl at night (especially senior cats with arthritis)
Type-Specific Pain Signs
Urinary pain (common in cats):
- Frequent trips to litter box
- Straining with little output
- Crying while urinating
- Licking genital area
Arthritis (often missed in cats):
- Not jumping to favorite spots
- Using stairs less
- Difficulty posturing to urinate/defecate
- Reduced grooming (especially hind end)
- Reluctance to use cat door
Dental pain:
- Eating on one side
- Dropping food
- Decreased appetite
- Pawing at mouth
- Drooling
Common Causes of Pain
Acute Pain (Sudden Onset)
- Injury or trauma
- Acute infections
- Pancreatitis
- Urinary obstruction
- Disc disease
- GI obstruction
Chronic Pain (Gradual, Ongoing)
- Osteoarthritis (EXTREMELY common in older pets)
- Dental disease
- Cancer
- Chronic infections
- Inflammatory conditions
- Intervertebral disc disease
Important: Many owners attribute slowing down to "just getting old." But old pets in pain who receive treatment often become dramatically more active. Age is not a disease—pain is.
What to Do If You Suspect Pain
Immediate Steps
- Limit activity: Rest prevents further injury.
- Observe carefully: Note what triggers reactions, what helps.
- Don't give human medications: Tylenol, ibuprofen, aspirin can be toxic to pets.
- Schedule a vet visit: Same day if severe; soon if mild.
At the Vet Visit
Describe what you've observed:
- Specific behaviors
- When they started
- What makes it worse/better
- Changes in eating, drinking, elimination
Be specific: "He's been licking his right front paw for three days and limps after resting" is more helpful than "he seems off."
Treatment Options
Modern veterinary medicine offers many pain management options. The American Veterinary Medical Association recommends a multimodal approach tailored to each patient:
- NSAIDs: Anti-inflammatory medications (pet-safe versions)
- Gabapentin: Excellent for nerve pain and chronic pain
- Opioids: For severe pain
- Joint supplements: Glucosamine, omega-3s
- Physical therapy: Rehabilitation, laser therapy, acupuncture
- Weight management: Reduces joint stress
- Environmental modifications: Ramps, orthopedic beds, raised food bowls
Preventing Chronic Pain
Maintain Healthy Weight
Every extra pound stresses joints. Keeping pets lean prevents and reduces arthritis pain.
Regular Dental Care
Dental disease causes significant pain that often goes unrecognized. Annual dental cleanings and daily tooth brushing help.
Appropriate Exercise
Regular, moderate exercise maintains joint health better than weekend warrior intense activity.
Early Intervention
Address minor issues before they become chronic. The earlier pain is treated, the easier it is to manage.
The Bottom Line
Your pet relies on you to recognize when something is wrong. The signs are there—they're just subtle.
Watch for changes in activity, behavior, eating, posture, and facial expression. Trust your instincts—you know your pet best. And never assume symptoms are "just old age."
Pain is treatable. Your pet doesn't have to suffer in silence.
Related: How Often Does Your Pet Need a Vet Visit? Related: Arthritis in Pets: Signs and Treatment
Frequently Asked Questions
Why do pets hide pain, and how can I detect it early?
Pets hide pain as an evolutionary survival instinct—showing weakness in the wild attracts predators. To detect pain early, watch for subtle changes in activity level, appetite, posture, and facial expression. A dog that stops greeting you at the door, or a cat that no longer jumps to favorite high spots, is likely experiencing discomfort that warrants a veterinary evaluation.
Is it safe to give my pet human pain medication like ibuprofen or Tylenol?
No, never give human pain medications to pets without explicit veterinary approval. Ibuprofen and naproxen can cause severe kidney failure and stomach ulcers even in small doses. Acetaminophen (Tylenol) is especially lethal to cats. Veterinary-specific pain medications like carprofen, meloxicam, and gabapentin are formulated for safe use in pets.
What does the "prayer position" in dogs indicate about pain?
When a dog adopts the prayer position—front legs stretched forward and down with the rear end raised—it typically indicates abdominal pain. This posture relieves pressure on the belly and is commonly associated with conditions like pancreatitis, bloat, or gastrointestinal distress. If your dog frequently stretches into this position, see your vet promptly.