Signs of pain in senior pets

Your senior pet can't tell you when something hurts. Worse, evolution has programmed dogs and cats to hide pain, a survival instinct from their wild ancestors when showing weakness could make them targets for predators. This means that by the time pain becomes obvious to us, our pets may have been suffering for weeks or months.

Learning to read the subtle signs of pain in senior pets allows you to seek treatment earlier, improving outcomes and quality of life. This guide will help you become fluent in your pet's pain language.

Why pets hide pain

Understanding why pets mask discomfort helps explain why the signs are so subtle. In the wild, an animal showing weakness becomes a target for predators or may lose status in their social group. Though our pets live safely in our homes, these instincts remain powerful.

Dogs, being social animals, may also hide pain to avoid worrying their human family, whom they see as their pack. Cats, as both predators and prey in the wild, are perhaps the most skilled pain-hiders of domestic animals. This makes cat pain particularly challenging to detect.

Pain signs in senior dogs

Changes in movement and activity

Reluctance to jump, climb stairs, or get into the car often develops so gradually that owners attribute it to "just getting old" rather than recognizing it as pain avoidance. Watch for hesitation before physical activities your dog previously did without thinking. Stiffness after resting, limping that "warms up" with movement, and lagging behind on walks are all potential pain indicators.

Pay attention to how your dog positions themselves when lying down and getting up. Dogs in pain may repeatedly reposition, struggle to get comfortable, or need multiple attempts to stand. They may prefer hard surfaces that support achy joints over soft beds where they sink in.

Changes in behavior

Pain changes personality. A normally friendly dog may become withdrawn, irritable, or even aggressive, particularly when touched in painful areas. Some dogs become clingy and seek more attention; others prefer solitude. Any significant personality change in a senior dog warrants investigation.

Watch for decreased interest in activities they once loved: not greeting you at the door with enthusiasm, ignoring the leash that once sparked joy, or losing interest in toys and play. Depression and pain often go together in dogs.

Vocalizations

Whimpering, whining, or yelping, especially when moving or being touched, clearly indicates pain. However, many dogs in chronic pain become quieter rather than more vocal. Groaning when lying down or standing up can indicate discomfort. Some dogs pant excessively when in pain, even when they're not hot or haven't exercised.

Changes in eating and drinking

Dental pain can make eating uncomfortable, leading to dropped food, chewing on one side, or reluctance to eat hard kibble. But pain anywhere in the body can suppress appetite. Conversely, some dogs drink more water when uncomfortable. Changes in eating speed, food preferences, or interest in meals should be noted.

Physical signs

Excessive licking, chewing, or biting at a particular area often indicates localized pain. Dogs may lick arthritic joints or irritated skin until they create hot spots or hair loss. Trembling or shaking when not cold can indicate pain. Holding a body part differently, like a tucked tail, raised paw, or hunched back, suggests discomfort in that area.

Changes in sleep

Restless sleep, difficulty finding a comfortable position, pacing at night, or sleeping significantly more or less than usual can all be pain-related. Dogs in pain may sleep in unusual positions or locations as they try to find relief.

Pain signs in senior cats

Cats are notoriously difficult to read when it comes to pain. They don't show obvious distress signals the way dogs do, and many of their pain signs can be mistaken for normal aging or personality quirks.

Changes in mobility

Cats are athletic animals, so any reduction in jumping or climbing is significant. Watch for using intermediate surfaces as "stepping stones" to reach favorite high spots, hesitating before jumping up or down, or avoiding heights altogether. Stiffness, especially after sleeping, and difficulty with stairs indicate potential joint pain.

Litter box issues often stem from pain. A cat who suddenly starts eliminating outside the box may be having trouble climbing in, especially with high-sided boxes. Arthritic cats may not squat fully, leading to accidents over the edge.

Changes in grooming

Cats in pain often groom less, resulting in an unkempt, matted, or greasy coat, particularly on the back half of the body where twisting to reach is uncomfortable. Conversely, some cats over-groom painful areas, creating bald patches or skin irritation over sore joints or organs.

Facial expressions

Research has identified specific facial changes in cats experiencing pain. Look for squinted or partially closed eyes, ears rotated outward or flattened, a tense muzzle with whiskers held close to the face, and a generally tense or withdrawn expression. The "Feline Grimace Scale" is a validated tool veterinarians use, and images are available online to help owners learn to read cat faces.

Behavioral changes

Hiding is a classic cat pain response. A cat who suddenly spends most of their time under the bed or in a closet may be seeking a safe place to cope with discomfort. Changes in social behavior, whether becoming more withdrawn or unusually clingy, are significant.

Increased aggression or irritability, especially when touched, often indicates pain. A previously tolerant cat who now hisses or swats when picked up or petted in certain areas is communicating something important.

Purring

This one surprises many cat owners: cats don't only purr when content. Cats also purr when stressed, frightened, or in pain, possibly as a self-soothing mechanism. Purring in unusual contexts, like during veterinary exams or when the cat seems otherwise unwell, may indicate discomfort rather than contentment.

Changes in routine

Cats are creatures of habit. Any significant change in their daily routine, eating patterns, sleeping spots, or activity level warrants attention. Sleeping more, playing less, showing decreased interest in surroundings, or acting generally "not themselves" can all be pain-related.

When pain becomes an emergency

Some pain signs require immediate veterinary attention:

• Sudden inability to walk or stand
• Crying or screaming
• Bloated or distended abdomen
• Rapid breathing or open-mouth breathing in cats
• Collapse or extreme weakness
• Signs of pain combined with vomiting, diarrhea, or inability to urinate
• Any sudden, severe change in behavior

Keeping a pain diary

Because pain signs can be subtle and develop gradually, keeping a simple diary helps track changes over time. Note daily activity levels, any limping or stiffness, appetite, mobility issues, and behavioral changes. This record helps you spot patterns and gives your veterinarian valuable information.

Video can be particularly useful. Record your pet walking, climbing stairs, getting up from rest, and going about daily activities. These clips show your vet exactly what you're seeing at home, which may differ from behavior in the clinic where adrenaline can mask pain.

Pain management options

If your pet is in pain, effective treatments are available. Modern veterinary medicine offers many options for managing chronic pain:

• Non-steroidal anti-inflammatory drugs (NSAIDs) designed specifically for pets
• Other pain medications like gabapentin, tramadol, or amantadine
• Joint supplements and injectable joint protectants
• Newer treatments like monoclonal antibody therapies
• Physical therapy, acupuncture, laser therapy, and massage
• Weight management to reduce stress on joints
• Environmental modifications to improve comfort

Never give human pain medications to pets without veterinary guidance. Many common human drugs, including ibuprofen, acetaminophen, and naproxen, are toxic to dogs and cats.

Advocating for your pet

You know your pet better than anyone. If you sense something is wrong even if you can't pinpoint exactly what, trust that instinct and discuss it with your veterinarian. Bring your notes and videos. Ask specifically about pain assessment.

Some pets mask pain so well that they seem fine during vet exams. If your observations at home don't match the clinic assessment, say so. A trial of pain medication may reveal whether pain was affecting your pet more than anyone realized.

No pet should live with unmanaged pain. With attention and appropriate care, most painful conditions in senior pets can be treated effectively, restoring comfort and quality of life.