By the Woofio Team · Updated September 2026 · 8 min read
Your dog gets up from his bed and something is off. He is holding a back leg, or putting it down but not quite trusting it. He wags, he eats, he asks for his walk. Nothing about him says emergency, and that is exactly what makes the decision difficult.
This guide covers which signs mean go today, why so many limping dogs seem perfectly happy, what the common causes actually are, and what to do while you wait for your appointment.
Go to the Vet Today If
These do not wait until Monday
- He will not put the leg down at all, or will not stand
- The leg is at an odd angle, or you can see swelling
- He yelps when he moves or when the leg is touched
- There is a wound, heavy bleeding, or heat around a joint
- Both back legs are affected, or they are wobbly, crossing over or giving way
- He is panting hard, shaking, or hiding, and it is not warm
- He is a dachshund or another long-backed breed with any sudden back leg weakness
Everything below that threshold still deserves an appointment, just not necessarily an emergency one. A limp that has lasted more than a day, or one that keeps returning, should be seen.
"He Is Limping but He Is Not in Pain"
This is the most common sentence owners say, and it is the one that most often delays a visit. It is worth unpicking, because it is usually not true in the way it sounds.
Dogs do not express discomfort the way people do. A dog with a painful knee will still greet you at the door, still eat his dinner and still wag when the lead comes out, because none of those things involve loading the joint. He hides it because instinct tells him to, and because he wants the walk more than he wants to protect the leg.
The plain version
A limp is the sign of pain. It is the body moving weight off something that hurts. If a dog is limping, he has already told you; he is simply not shouting about it. Yelping and whimpering belong to sudden, severe problems, not to the slow ones.
There is one genuine exception. A dog can hold a leg up out of habit for a short while after an injury has settled, or because of a nerve rather than a pain problem. That is still a reason to be seen, not a reason to relax.
The Common Causes, by Pattern
How a limp starts tells you a great deal about where to look. This is a guide to the likely direction, not a diagnosis.
Came on suddenly
| Likely cause | What tends to go with it |
|---|---|
| Cruciate ligament injury | The most common cause of hind leg lameness in adult dogs. Often after a turn or a slip. Sitting with the leg stuck out to the side is a classic sign. Frequently affects the other knee later |
| Soft tissue strain | After a hard run or a jump. Improves noticeably within a few days of genuine rest |
| Something in the paw | Grass seed, thorn, cut pad, broken or overgrown nail. He licks the paw, and the limp is worse on gravel than on grass |
| Luxating patella | The kneecap slips out of place. Often a skip or hop for a few strides, then completely normal again. More common in smaller breeds |
| Fracture or dislocation | Usually obvious. No weight on the leg at all, clear distress. Emergency |
Built up over weeks or months
| Likely cause | What tends to go with it |
|---|---|
| Osteoarthritis | Stiff for the first minutes after rest, then loosens. Worse after a big day and on cold mornings. Common in older dogs |
| Hip dysplasia | A swaying or bunny-hopping back end, reluctance to jump up, muscle loss over the hips. Often both sides, so it may not look like a limp at all |
| Lower back or nerve problems | Scuffed toenails on one side, wobbliness, legs crossing over, or difficulty rising. Needs veterinary assessment |
| Bone disease | Uncommon, but a persistent lameness in one leg of an older large-breed dog, particularly with firm swelling, needs prompt investigation |
If your dog's pattern is the second table rather than the first, the guide on how to tell if your dog is in pain includes a seven-day log that makes the conversation with your vet far more useful. For front legs specifically, particularly in a young large-breed dog, see elbow dysplasia in dogs.
What to Do in the First 48 Hours
WHILE YOU WAIT
1. Check the paw first. Between every pad and between the toes. Look for a grass seed, a thorn, a cut or a split nail. It is the easiest cause to find and the one most often missed.
2. Rest properly. Lead only, in the garden, for toilet breaks. No walks, no stairs, no sofa, no ball. Half rest is not rest, and a dog that feels fine will undo the healing you are trying to allow.
3. Film him walking. Twenty seconds on your phone, from the side and from behind, on a hard flat surface. Limps have a habit of disappearing in the consulting room. This is the single most useful thing you can bring.
4. Write down when it started and what he was doing. Sudden after a turn, or gradual over a fortnight, sends your vet down two very different paths.
5. Give nothing from your own cupboard. Human painkillers including ibuprofen and paracetamol are dangerous to dogs. Pain relief for dogs is prescription only in the UK and must come from your vet.
Do not massage, stretch or manipulate the leg, and do not apply heat or ice unless your vet has told you to.
What Happens at the Vet
Expect a gait assessment first: your vet will watch your dog walk and trot, often in the car park rather than the consulting room. Then a hands-on examination of the whole leg and the lower back, feeling each joint through its range of movement and comparing one side against the other.
For a suspected cruciate injury there are specific manipulation tests, and because tense dogs guard the joint, these are sometimes done under sedation. X-rays are common where a joint or bone problem is suspected. Depending on the findings you may be offered rest and medication, referral for imaging, or a discussion about surgery.
Ask two questions before you leave: what should improvement look like, and by when should you come back if it has not happened. A limp that has not improved on the plan you were given is information, not failure.
If It Turns Out to Be a Joint Problem
Injuries heal. Joint conditions are managed, and the daily routine around them does most of the work. If your dog has been diagnosed with arthritis, hip dysplasia or a cruciate problem, these are the things that make the biggest difference over years rather than weeks.
- Weight above everything. The most effective single change available to you, and the one that costs nothing.
- Regular and moderate, not occasional and hard. Two shorter lead walks beat one long off-lead session with sharp turns.
- Remove the jumps. A ramp to the car and a step to the sofa take the two heaviest loads out of the day.
- Grip on slippery floors. Runners across laminate and tile stop the small slips that make a dog brace and guard.
- Hydrotherapy or physiotherapy where your vet recommends it, to build the muscle that supports the joint without loading it.
- Daily joint support as part of the routine. Cumulative rather than immediate, and worth staying consistent with.
Daily joint support, built on green-lipped mussel
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Common Questions
My dog is limping but shows no sign of pain. Should I still worry?
Yes, in the sense that you should still have it checked. The limp is the sign. Dogs shift weight off what hurts long before they complain about it, and a wagging tail tells you about temperament rather than about the joint.
How long should I wait before going to the vet?
If none of the urgent signs above apply, a mild limp can reasonably be given 24 hours of strict rest. If it is still there after that, or if it improves and then returns, book an appointment.
Can a limp go away on its own?
A minor strain often settles with rest. The problem is that a partially torn cruciate ligament also settles for a while, then comes back worse, so an improving limp is not proof that nothing needed treating.
Why does my dog limp only after resting?
Stiffness that is worst in the first few minutes after a nap and then eases as he moves is a classic pattern for arthritis rather than injury. It is very easy to dismiss as ordinary ageing, and worth mentioning to your vet.
Can I give my dog paracetamol or ibuprofen?
No. Several common human painkillers are toxic to dogs, and ibuprofen in particular can cause serious harm. Never give anything from your own medicine cabinet. Pain relief for dogs is prescription only in the UK.
Related Guides
- How Do I Know If My Dog Is in Pain? 12 Signs to Look For
- Elbow Dysplasia in Dogs: Signs, Diagnosis and Living With It
- Managing Arthritis in Dogs: A Practical Guide
- How to Tell If Your Dog Has Arthritis
This guide is general information for dog owners and is not veterinary advice. A limp can only be diagnosed by a vet. If you are worried about your dog, or if any of the urgent signs above apply, contact your practice. Woofio Hip & Joint Chews are a complementary pet food that supports joint health and normal mobility; they are not a medicine and are not intended to diagnose, treat, prevent or cure any condition.