Quick answer: Dogs often hide pain, so the signs can be subtle. Look for changes in behavior such as hiding, restlessness, reluctance to jump or climb stairs, less interest in play or food, panting at rest, licking one spot, a hunched posture, limping, trembling, growling when touched or changes in sleep. Facial signs include squinting, a tense forehead and ears pulled back. Never give human pain medicine, which can be toxic to dogs. Call your vet if you notice signs of pain, and go to an emergency vet right away for severe pain, a swollen belly, trouble breathing, collapse or pain after an injury.

Why dogs hide pain

Dogs evolved from animals that lived in groups, where showing weakness could be risky. Many still instinctively mask discomfort, especially when they're excited, around strangers or at the vet. That's why your dog might seem perfectly fine in the exam room, then limp again the moment you get home.

Some dogs are naturally stoic, while others are more vocal. Breed, age and personality all play a part. A Labrador might keep fetching on a sore leg, while a small terrier might yelp at the slightest bump. Neither reaction tells you exactly how much pain your dog is in.

Pain also isn't always sudden. Chronic pain from arthritis, dental disease or old injuries often creeps in slowly. Because the changes are gradual, it's easy to put them down to old age or a lazy day. Many dog parents only realize how sore their dog was once pain relief is started and their dog suddenly seems years younger.

The best tool you have is knowing your dog's normal. How they walk, sleep, eat, play and greet you. When normal changes, it's worth paying attention.

Pain myths that keep dogs hurting

A few common beliefs can make it harder to spot pain. Clearing them up helps your dog get relief sooner.

• He's eating, so he's fine. Many dogs in pain keep eating normally. Appetite alone is not a reliable sign.
• She's just getting old. Slowing down is often caused by treatable pain like arthritis, not age itself.
• He'd cry if it hurt. Most dogs in chronic pain stay quiet. Silence doesn't mean comfort.
• She wagged at the vet, so it can't be bad. Excitement and adrenaline can hide pain for a short time.
• A little pain keeps him from overdoing it. Untreated pain slows healing and affects mood, sleep and appetite. Your vet can manage pain while still keeping rest in the plan.

If you're ever unsure, it's always reasonable to ask your vet. Nobody will mind you checking.

Acute pain vs. chronic pain

Vets often talk about two main types of pain. Knowing the difference helps you decide how urgently to act.

Acute pain comes on suddenly. It's usually caused by an injury, surgery, infection or a sudden illness like pancreatitis or bloat. Signs are often more obvious: yelping, limping, panting, hiding or refusing to move.

Chronic pain lasts weeks, months or longer. Common causes include arthritis, hip and elbow dysplasia, back problems, dental disease, ear infections and some cancers. Signs are often quiet: slowing down, sleeping more, grumpiness, less interest in walks or play, or trouble getting comfortable.

• Acute pain clues. Sudden change, crying out, guarding a body part, not wanting to be touched, a hunched back.
• Chronic pain clues. Slow change over time, stiffness after rest, reluctance to jump, licking joints, irritability.
• Both need attention. Acute pain often needs prompt care. Chronic pain deserves treatment too, because it affects quality of life every single day.

Senior dogs are especially likely to have chronic pain. If your dog is getting older, our senior dog care guide covers comfort changes that help.

Common causes of pain in dogs

Pain is a symptom, not a diagnosis. Finding the cause is what helps your vet choose the right treatment. Some causes are obvious, like a cut paw, while others hide deep inside the body.

Here are some of the most common reasons dogs feel pain:

• Arthritis and joint disease. One of the most common causes of chronic pain, especially in older and larger dogs, but it can affect dogs of any age.
• Injuries. Sprains, torn ligaments, broken nails, cuts and bruises from play, falls or accidents.
• Dental disease. Broken teeth, gum infections and tooth root abscesses are painful but easy to miss.
• Ear infections. Sore, itchy ears can cause head shaking and sensitivity. Our dog ear infection guide explains the signs.
• Back and disc problems. Especially in long-backed breeds and very active dogs.
• Tummy troubles. Upset stomach, pancreatitis, constipation or swallowing a foreign object. See our upset stomach guide.
• Urinary problems. Infections and bladder stones can make peeing painful.
• Skin problems. Hot spots, allergies, wounds and infections can be very sore.
• Cancer and other illnesses. Some conditions cause pain as they progress, which is why ongoing check-ups matter.

Many dogs have more than one source of discomfort, particularly as they age. A full check-up helps your vet build a complete picture.

Head and face: the dog pain face

Researchers have found that dogs, like people, often show pain on their faces. Learning your dog's relaxed expression makes it much easier to spot a pained one.

Look at your dog when they're happy and resting. Notice their eyes, ears, forehead and mouth. Then compare when you think something might be wrong.

• Eyes. Squinting, half-closed eyes, a glazed or dull look, or avoiding eye contact.
• Forehead. A tense or furrowed brow, or a worried look.
• Ears. Ears pulled back or flattened, or held lower than usual.
• Mouth. Tight lips, panting while resting, drooling, or a clenched jaw.
• Head position. Holding the head low, tilting it to one side or not wanting the head or ears touched.
• Chewing. Dropping food, chewing on one side, pawing at the mouth or bad breath, which can signal dental pain. See our dog bad breath guide.

Dental pain: the hidden hurt

Dental pain deserves its own spotlight, because it's one of the most overlooked types of pain in dogs. Most dogs keep eating even with sore teeth, so families often don't realize anything is wrong.

By the age of three, many dogs have some degree of dental disease. Tartar build-up, inflamed gums, broken teeth from chewing hard objects and tooth root infections can all cause ongoing pain. Because it creeps in slowly, your dog may simply adjust by chewing on one side or swallowing kibble whole.

Watch for these dental pain clues:

• Bad breath. A strong or unusual smell often points to infection.
• Chewing changes. Dropping food, chewing on one side or preferring soft food.
• Pawing at the face. Rubbing the muzzle on the floor or furniture.
• Red or bleeding gums. Especially along the gum line.
• Less interest in chew toys. A dog who used to love chewing suddenly ignores their favorites.
• Swelling. A lump below the eye can be a sign of a tooth root abscess.

Many dog parents say their dog acts like a puppy again after dental treatment, which shows how much hidden pain they were coping with. Our dog dental care at home guide has easy brushing tips to help prevent problems.

Neck, back and belly

The neck, spine and belly are common places for hidden pain. Watch how your dog holds their body when standing, lying down and moving.

Back and neck pain can come from slipped discs, muscle strain or arthritis. Long-backed breeds such as Dachshunds and Corgis are at higher risk of disc problems. Belly pain can be caused by stomach upset, pancreatitis, bloat or swallowing something they shouldn't.

• Hunched posture. An arched back or tucked-up belly can signal back or tummy pain.
• Prayer position. Front legs down and bottom up, held for a while, can mean belly pain. This is different from a playful bow.
• Stiff neck. Not wanting to lower the head to eat or drink, or turning the whole body instead of the head.
• Guarding. Flinching, growling or moving away when you touch the back or belly.
• Swollen belly. A tight, swollen belly, especially with retching and restlessness, is an emergency.
• Trembling. Shaking can be linked to pain. Our why is my dog shaking guide explains other causes.

Legs, hips and paws

Limping is one of the easiest signs to spot, but pain in the legs and joints can also be subtle. Watch your dog walk toward you, away from you and side to side on a flat surface.

Here's what to look for:

• Limping or favoring a leg. Even a slight head bob when walking can mean a sore front leg.
• Stiffness after rest. Slow to get up in the morning or after a nap, then loosening up with movement.
• Bunny hopping. Moving both back legs together when running can point to hip problems.
• Reluctance to jump or climb. Hesitating at stairs, the car or the couch.
• Sitting oddly. Sitting with a leg out to the side, or shifting weight constantly.
• Licking or chewing. Focusing on one paw, joint or leg.
• Nail or paw problems. Torn nails, cuts, burrs between the toes or long nails can all hurt. Our nail trimming guide can help.

Cold weather can make joint pain worse. If your dog seems stiffer in winter, see our guide to arthritis in dogs in cold weather.

Behavior changes that can signal pain

Sometimes the biggest clue isn't physical at all. A change in personality or routine is one of the most common signs that a dog is hurting.

Pain is tiring and frustrating. It can make the friendliest dog snappy, or turn a busy dog into a couch potato. Here are behavior changes to take seriously:

• Less interest in play or walks. Stopping early, lagging behind or not bringing toys anymore.
• Hiding or seeking comfort. Some dogs hide away, while others become extra clingy.
• Restlessness. Pacing, getting up and down, or trouble settling at night.
• Grumpiness. Growling, snapping or moving away when touched, especially in one spot.
• Changes in eating. Eating less, eating slowly or dropping food.
• Changes in sleep. Sleeping more, or sleeping in unusual positions. Our sleeping positions guide explains what's typical.
• House accidents. Pain can make it hard to squat or get outside in time.
• Vocalizing. Whining, whimpering, groaning or yelping, especially when moving.

Breathing, panting and other body signs

Pain often affects the whole body, not just the sore spot. Watch for these signs, especially when your dog is resting.

Panting is normal after exercise or in hot weather, but panting at rest in a cool room can be a sign of pain or stress. Fast, shallow breathing or breathing with effort needs a vet's attention.

• Panting at rest. Especially at night or in a cool, calm room.
• Faster heart rate. You may notice a racing heartbeat when your dog is lying still.
• Shaking or trembling. Particularly if it's new or paired with other signs.
• Dilated pupils. Wide pupils in normal light can be linked to pain or fear.
• Changes in toileting. Straining, crying while peeing or pooping, or posture changes.
• Coat changes. Dogs in chronic pain may stop grooming certain areas or look scruffy.

Dogs at higher risk of pain

Any dog can experience pain, but some are more likely to develop certain painful conditions. Knowing your dog's risks helps you watch for early signs and plan ahead with your vet.

• Senior dogs. Arthritis, dental disease and other age-related conditions are very common in older dogs.
• Large and giant breeds. Breeds like Labradors, German Shepherds, Great Danes and Rottweilers are more prone to hip and elbow problems.
• Long-backed breeds. Dachshunds, Corgis and Basset Hounds have a higher risk of disc disease.
• Flat-faced breeds. Pugs, French Bulldogs and Bulldogs can have breathing, eye, skin and spine problems.
• Overweight dogs. Extra weight puts pressure on joints. Our is my dog overweight guide can help you check.
• Very active and working dogs. More running and jumping means more chance of sprains and injuries.
• Dogs recovering from surgery. Pain relief and rest are part of a smooth recovery.

If your dog falls into one of these groups, ask your vet which signs to watch for and whether regular screening, like joint checks or dental exams, makes sense.

A gentle head-to-tail home check

A regular home check helps you learn your dog's normal and spot changes early. Do it when your dog is relaxed, ideally once a week, and keep it calm and positive with treats. Stop if your dog shows discomfort, and never force a painful area.

Work slowly from nose to tail:

• Face. Look at the eyes, ears and mouth. Check for discharge, redness or a bad smell.
• Mouth. Lift the lips gently and look at gums and teeth. Gums should be pink and moist.
• Neck and shoulders. Stroke gently and notice any flinching or tension.
• Back. Run your hand along the spine with light pressure. Watch for twitching or turning to look.
• Belly. Gently feel the belly. It should be soft, not tight or swollen.
• Legs. Feel each leg from top to bottom, comparing left and right for heat or swelling.
• Paws. Check pads, between the toes and nails.
• Tail. Look under the tail and check that it moves freely.

Jot down anything unusual, along with the date. Photos and short videos of limping or odd movement are incredibly helpful to share with your vet.

Over time, this weekly check becomes a bonding ritual. Many dogs start to look forward to it, especially when it ends with a favorite chew or a game. And because you're doing it often, you'll quickly notice when something feels different.

Pain scoring: how vets measure pain

Vets use pain scales to measure and track pain more objectively. You can use a simple version at home to track your dog over time, which is especially useful for chronic conditions like arthritis.

Several scales have been developed for vets and owners, such as the Glasgow Composite Measure Pain Scale and the Canine Brief Pain Inventory. You don't need to learn these in detail. A simple weekly score from 0 to 10 on a few everyday activities works well:

• Getting up after rest. Easy, a little slow, or a struggle?
• Walking and play. Normal energy, shorter than usual, or reluctant?
• Stairs and jumping. Confident, hesitant, or avoiding?
• Mood. Happy and social, quieter, or grumpy?
• Sleep. Settled, restless, or up and down at night?

Share your notes at each visit. Tracking helps your vet see whether a treatment plan is working and when it might need changes.

Never give human pain medicine

When your dog is hurting, it's natural to want to help right away. But this is important: never give your dog human pain medication unless your vet specifically tells you to.

Many common human painkillers are dangerous for dogs, even in small doses. Ibuprofen and naproxen can cause stomach ulcers and kidney damage. Acetaminophen can harm the liver and red blood cells. Aspirin carries risks too and can interfere with other treatments your vet might prescribe.

Instead, call your vet. There are safe pain medicines made for dogs, as well as other options like joint supplements, physical therapy, weight management and acupuncture. Your vet will choose the right one for your dog's age, health and condition.

If your dog has swallowed any human medicine, contact your vet or the ASPCA Animal Poison Control Center right away. Our toxic foods for dogs guide also covers common household dangers.

Comfort tips while you wait for the vet

While you're waiting for an appointment, there are gentle ways to keep your dog comfortable. These don't replace veterinary care, but they help your dog rest and recover.

• Rest. Limit running, jumping and stairs. Use short, calm leash walks for potty breaks.
• A soft, supportive bed. Orthopedic or memory foam beds help sore joints. See our dog bed guide.
• Non-slip floors. Rugs and yoga mats help dogs keep their footing on slippery floors.
• Ramps and steps. Help your dog reach the couch or car without jumping.
• Warmth. A cozy blanket can soothe stiff joints. Avoid heating pads unless your vet approves.
• Quiet time. Keep children and other pets from bothering a sore dog.
• Raised bowls. Can help dogs with neck or back pain eat more comfortably.

Living well with chronic pain

A diagnosis of a long-term painful condition like arthritis can feel overwhelming. The encouraging news is that many dogs live happy, active lives with the right plan. Pain management usually works best as a combination of approaches rather than a single fix.

Work with your vet to build a plan that suits your dog. It might include several of these:

• Dog-safe pain relief. Your vet may prescribe medication and adjust it over time.
• Healthy weight. Even a small weight loss can make a big difference to sore joints.
• Gentle, regular exercise. Short, steady walks are often better than one long, tiring outing. See our exercise guide.
• Physical therapy. Rehab exercises, underwater treadmills and massage can improve strength and comfort.
• Home changes. Ramps, rugs, raised bowls and supportive beds make daily life easier.
• Regular rechecks. Pain can change over time, so keep your vet updated.

Keep tracking your dog's comfort score each week. It's a simple way to celebrate good days, spot bad ones and make informed decisions together with your vet.

Caring for your dog after surgery or injury

Pain after surgery or an injury is expected, and your vet will usually send your dog home with a pain relief plan. Your job is to follow it closely and watch for anything that seems off.

• Give medicine exactly as prescribed. Don't skip doses or stop early, even if your dog seems better.
• Keep the wound clean and dry. Check it daily for redness, swelling, discharge or a bad smell.
• Prevent licking. Use a cone or recovery suit if your vet recommends one.
• Limit activity. Follow your vet's instructions on walks, stairs and play.
• Watch appetite and toileting. Tell your vet if your dog stops eating, vomits or strains.
• Call if pain seems worse. Increasing pain, new swelling or restlessness needs a recheck.

When to call the vet, and when to go now

Any sign of pain deserves a call to your vet. Some signs mean you should go to an emergency vet right away. Trust your instincts. You know your dog best.

Go to an emergency vet now if your dog has:

• A swollen, tight belly. Especially with retching or unproductive vomiting.
• Trouble breathing. Labored, noisy or very fast breathing.
• Collapse or severe weakness. Unable to stand or walk.
• Pain after an injury. Being hit by a car, a fall or a fight, even if your dog seems fine.
• Sudden paralysis. Not using the back legs or dragging them.
• Severe pain. Crying out, unable to settle or trembling badly.
• Possible poisoning. Swallowed medication, toxins or something sharp.
• Straining to pee. Especially in male dogs, with little or no urine.

Call your regular vet for a prompt appointment if you notice limping that lasts more than a day or two, changes in behavior, appetite or sleep, licking one spot, stiffness or any of the subtle signs in this checklist. Keep your vet and nearest 24-hour emergency hospital's details saved in your phone, and check our dog first aid kit checklist.

What to expect at the vet

Knowing what happens at the visit can make it less stressful for both of you. Your vet will ask questions, examine your dog and may recommend tests to find the cause.

Bring your notes, any photos or videos and a list of medications and supplements your dog takes. Be honest about when you first noticed changes, even if it seems small.

• History. Your vet will ask when the signs started, what you've noticed and whether anything changed recently.
• Physical exam. Gentle feeling of muscles, joints, belly and spine, plus watching your dog walk.
• Tests. Bloodwork, X-rays or ultrasound may be needed to find the cause.
• Treatment plan. May include dog-safe pain relief, rest, weight loss, physical therapy, dental work or surgery.
• Follow-up. Ask how to monitor your dog at home and when to check back.

If vet visits are stressful for your dog, our guide to making vet visits less scary has calming tips. And if you're looking for a new clinic, see how to choose a veterinarian.

Don't be afraid to ask questions. Ask what the likely cause is, what the treatment options are, what side effects to watch for and how you'll know if the plan is working. Write the answers down, because it's easy to forget details when you're worried. A good vet will be happy to explain, and a clear plan helps you feel confident caring for your dog at home.

• Dogs hide pain. Watch for small changes.
• Know your dog's normal. Face, posture, behavior and sleep.
• Check head to tail. Weekly, gently and with treats.
• Never give human painkillers. Always ask your vet.
• Act quickly. Emergencies can't wait.

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How can I tell if my dog is in pain?

Look for changes in behavior, posture and routine, such as limping, hiding, restlessness, panting at rest, licking one spot, reluctance to jump, growling when touched or eating less.

Do dogs cry when they are in pain?

Some dogs whine, whimper or yelp, but many stay quiet. A lack of crying does not mean your dog is pain-free, so watch for other signs.

What does a dog in pain look like?

A dog in pain may squint, hold their ears back, have a tense face, a hunched back, a lowered head or a tucked tail, and may avoid moving or being touched.

Can I give my dog ibuprofen or Tylenol?

No. Human pain medicines like ibuprofen, naproxen and acetaminophen can be toxic to dogs. Only give medicine your vet prescribes for your dog.

Why does my dog pant at night?

Night panting can be caused by heat, anxiety or excitement, but panting at rest in a cool room can also be a sign of pain or illness. Mention it to your vet.

Do dogs hide pain?

Yes. Many dogs instinctively mask pain, especially when excited or at the vet. Subtle changes at home are often the first clue.

Is limping an emergency?

Limping after an injury, with severe pain, swelling or refusal to bear weight needs prompt care. Mild limping lasting more than a day or two should be checked by your vet.

How do vets treat pain in dogs?

Vets may use dog-safe pain medicines, rest, weight management, joint supplements, physical therapy, acupuncture or surgery, depending on the cause.

Can arthritis cause pain in young dogs?

Yes. Hip or elbow dysplasia, injuries and other joint problems can cause arthritis and pain in young and middle-aged dogs, not just seniors.

Should I take my dog to the vet if they seem fine but something is off?

Yes. You know your dog best, and subtle changes are often the first sign of pain. A quick check can catch problems early.