Signs Your Senior Dog Is in Pain (And What To Do)

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One of the most heartbreaking aspects of caring for a senior dog is that they can’t tell you when something hurts. Dogs evolved as prey animals — hiding pain is an instinct because showing weakness can attract predators. As a veterinarian specializing in senior dog health, I see owners regularly who are stunned to discover their dog has been in significant pain for months, sometimes years, before they noticed the signs.

This guide covers every behavioral and physical sign of pain I look for in my patients, and what to do if you recognize them in your dog.

Why Senior Dogs Hide Pain

The pain-hiding instinct is strongest in stoic breeds (working dogs, terriers, hounds), but present in virtually all dogs. Unlike cats — who advertise pain through vocalizing — dogs often simply slow down, withdraw, or become “less themselves” when uncomfortable. Owners attribute this to “just getting old” rather than recognizing it as a pain signal.

The clinical reality: approximately 20% of dogs over 1 year old are affected by osteoarthritis (Veterinary Journal, 2012), and this rises dramatically with age — studies suggest up to 80% of dogs over 8 years of age show radiographic evidence of joint changes, though not all are symptomatic.

Behavioral Signs Your Senior Dog Is in Pain

Changes in Mobility and Activity

• Reluctance to use stairs that were previously no problem
• Difficulty rising from a lying position — taking longer to stand, circling multiple times before lying down
• Stiffness after rest that improves after a few minutes of moving (the hallmark of osteoarthritis)
• Shorter strides or an altered gait — favoring one leg, bunny-hopping with hind limbs, or moving more carefully than before
• Refusing walks or stopping earlier than usual
• No longer jumping onto furniture, into the car, or up to greet people

Changes in Behavior and Mood

• Increased irritability or aggression — a normally gentle dog growling when touched, especially in specific areas. This is a pain response, not a personality change. Important: a dog that suddenly snaps when their back is touched has a sore back.
• Withdrawal from family — seeking solitude instead of their usual social spots
• Loss of interest in activities they previously enjoyed (play, greeting visitors, fetching)
• Sleep disturbances — restlessness at night, inability to find a comfortable position, more frequent position changes
• Vocalization — whining, yelping, or groaning when moving or when touched in specific areas (more obvious, but many dogs don’t vocalize even in significant pain)

Physical Signs and Grooming Changes

• Licking, chewing, or biting at specific body areas — dogs self-groom painful areas compulsively. Excessive licking of a paw, joint, or area of the back often indicates localized pain.
• Hunched posture or lowered head carriage — indicates neck, back, or abdominal discomfort
• Panting at rest or in cool environments — pain activates the sympathetic nervous system, which increases respiratory rate
• Changes in eating habits — reluctance to bend to a floor bowl (neck/back pain), reduced appetite (general discomfort)
• Muscle atrophy — visible muscle loss, particularly in the hindquarters with spinal disease or hip arthritis, as dogs avoid using painful limbs

The Colorado State University Pain Scale: A Practical Tool

Veterinary professionals use validated pain assessment tools. The Colorado State University Canine Acute Pain Scale and the Helsinki Chronic Pain Index are the most widely used for dogs. For owners, a simplified approach:

Rate your dog on these five dimensions (0 = normal, 3 = significantly abnormal):

1. Mobility and gait
2. Posture and body position
3. Response to touch in potentially painful areas
4. Interaction with people and environment
5. Facial expression (squinting, tense face, glazed look)

A score of 5+ across these five dimensions warrants a veterinary visit to assess for pain.

Common Pain Sources in Senior Dogs

Osteoarthritis (Most Common)

Degenerative joint disease affecting hips, elbows, stifles (knees), and spine. Progressive and managed rather than cured. Onset is insidious — owners rarely notice early-stage symptoms.

Dental Disease

Frequently overlooked. Periodontal disease affecting 80% of dogs over 3 years of age causes chronic, low-grade pain that suppresses appetite and mood. Signs: reluctance to eat hard food, drooling, pawing at face, bad breath beyond normal.

Intervertebral Disc Disease (IVDD)

Common in chondrodystrophic breeds (dachshunds, corgis, basset hounds). Signs: acute back or neck pain, difficulty walking, stumbling, hindlimb weakness or paralysis. IVDD is an emergency when neurological signs are present.

Cancer

Bone cancer (osteosarcoma) is painful and relatively common in large breeds over 7 years. Soft tissue cancers cause variable pain depending on location and size. Any rapidly developing lameness or new lumps warrant veterinary evaluation.

What to Do When You Suspect Your Dog Is in Pain

Immediate Steps

1. Document what you’re seeing: Video of the gait abnormality, photos of posture changes, written notes on when symptoms started and what makes them better or worse
2. Schedule a veterinary appointment — not “wait and see” for more than 1–2 days
3. Do not give human pain medications: Ibuprofen, acetaminophen (Tylenol), and naproxen are all toxic to dogs. Even aspirin should not be given without veterinary guidance, as it interferes with safer NSAID prescriptions.

At the Vet

A thorough physical and orthopedic examination, potentially with radiographs, will identify the pain source. Treatment options for chronic pain in senior dogs include:

• NSAIDs (Galliprant, Carprofen, Meloxicam): First-line for osteoarthritis pain. Require baseline bloodwork and monitoring.
• Gabapentin: Nerve pain and central sensitization component of chronic pain
• Joint supplements: Supportive role in early-to-moderate arthritis
• Physical rehabilitation: Hydrotherapy, therapeutic exercises significantly extend quality of life in arthritic dogs
• Acupuncture: Growing veterinary evidence base for chronic pain management

FAQ: Senior Dog Pain Signs

How do I know if my dog is limping from pain or injury?

Both require veterinary evaluation. Pain-related limping is often intermittent (worse after rest, better after a few minutes), while injury-related limping may be acute and constant. Neither should be monitored at home for more than 24–48 hours without a vet visit.

My dog doesn’t yelp — does that mean they’re not in pain?

Absolutely not. Most dogs don’t vocalize pain. Behavioral changes and mobility changes are far more reliable indicators than vocalizing.

At what age is a dog considered “senior”?

Small breeds (under 20 lbs): 10–12 years. Medium breeds: 8–10 years. Large breeds (over 50 lbs): 7–8 years. Giant breeds (over 90 lbs): 6–7 years. Giant breeds age faster and have shorter lifespans.

Bottom Line

Your senior dog is almost certainly better at hiding pain than you are at detecting it. Regular veterinary wellness visits (every 6 months for dogs over 8) with pain assessments are the best protection against missed chronic pain. Between visits, watch for the behavioral changes in this guide — they’re the language your dog uses when they can’t use words.

Related: Best Joint Supplements for Dogs — Glucosamine vs Fish Oil vs CBD