What this means
The first step at home is to look carefully at the paw. A stone between the pads, a thorn, a lump of ice in winter, a cut pad or an ingrown nail explains a good share of sudden limping and is easy to spot. Run gently over each toe, the pads and the base of each nail, watching for a reaction to the touch.
If the paw is fine, look at how the limp behaves over time. A limp that is worst on getting up after sleep and eases with movement says one thing; a limp that gets worse after a walk says another. A limp that appears in a single second during play usually means an injury, while one that builds up over weeks points at a longer-standing joint change.
Which leg matters too. A front-leg limp often involves the foot, shoulder or elbow region; a back-leg limp the hip, knee or back. Dogs frequently show pain quietly rather than by crying: reluctance on stairs, not jumping into the car, getting up more slowly, or standing differently. Those changes are as much information as the limp itself.
Possible causes
These are things that can cause this sign. It is not a diagnosis, and they are not equally likely for your dog.
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A paw injury or foreign object
A wedged stone, a thorn, a cut pad or a broken nail causes sudden limping. Dogs often lick the same spot and pull the paw away when you try to handle it.
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A pulled muscle or strained ligament
A sharp turn during play or uneven ground strains the soft tissues. The pattern is a limp that appears instantly and eases gradually over a few days.
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Damage to a ligament in the knee
Ligament damage in a hind leg causes clear lameness that eases with rest and returns with activity. The dog may sit with the leg kicked out to one side.
About the condition: Cranial cruciate ligament disease -
Wear in the joints
Long-standing joint change causes stiffness, worst on rising after sleep or a long rest. Movement eases it at first, but a long walk brings the signs back.
About the condition: Arthritis -
Joint changes during growth
Growing dogs, especially larger ones, can develop problems in how a joint surface forms. The limp comes on gradually and may switch legs.
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Back and spinal disc changes
A problem in the back can look like a hind-leg limp or a dragging foot. Reluctance on stairs, an arched back or sensitivity to touch often go with it.
About the condition: Intervertebral disc disease
What else to watch for
These observations help your vet build the picture faster. Note down what you saw and when.
- Which leg, and whether your dog puts weight on it at all
- Whether the limp is worst on rising, or after activity
- Whether there is a wound, thorn or broken nail in the paw
- Whether a joint is swollen or feels warmer
- Whether your dog now avoids stairs, the car or play
- Whether your dog licks one particular spot
When to book a routine visit
Book a visit if the limp lasts more than a day, if it keeps returning after rest, or if your dog is slower to get up and avoids stairs. If the leg is not being used at all, is being dragged, or there has been an injury, go straight away.
Related conditions
Conditions whose entries mention this sign. The list is somewhere to read on, not a way to reach a diagnosis.
- Arthritis Bones and joints Arthritis is inflammation of the joints in which the cartilage gradually wears down, leaving the joint stiff and painful. It can develop with age, after an injury or because of joints that did not form properly. Ongoing pain limits how freely and comfortably a dog moves, so changes are worth showing to a vet.
- Hip dysplasia Bones and joints Hip dysplasia is a developmental problem of the hip joint in which the head of the thigh bone does not sit snugly in the hip socket, so the loose joint wears unevenly over time. This can lead to pain and arthritis that limit how freely and comfortably a dog moves. Genetics play a part, but growth, body weight and exercise during puppyhood also have an influence.
- Elbow dysplasia Bones and joints Elbow dysplasia is an umbrella term for several developmental problems of the elbow, in which the growing bones do not fit together properly and the joint surfaces wear unevenly. The joint wears out before its time, becoming painful and arthritic. The condition is inherited and develops during growth, so signs can appear while the dog is still young.
- Cranial cruciate ligament disease Bones and joints The cranial cruciate ligament is one of the ligaments that keep the knee joint stable. In dogs it can gradually weaken and tear partly or completely, sometimes after quite a small movement, leaving the knee unstable and painful and leading to arthritis. Genetics, body weight and exercise all play a part, and sometimes both hind legs are affected.
- Patellar luxation (slipping kneecap) Bones and joints Patellar luxation is a condition in which the kneecap slips out of its groove in the thigh bone, towards the inside or the outside of the leg. Sometimes it pops straight back, sometimes it stays out for longer, and over time the knee joint wears and can develop arthritis. It can be present from birth or follow an injury.
- Osteochondritis dissecans (OCD) Bones and joints This is a joint disorder of growing dogs in which the cartilage lining a joint does not develop as it should: it becomes too thick, attaches poorly to the bone and can crack or flake away. A loose flap or fragment of cartilage irritates the joint, causing pain and inflammation, and over time it can contribute to arthritis in that joint. A young dog can limp for other reasons too, so what is happening in the joint is for a vet to decide.
- Intervertebral disc disease Bones and joints Intervertebral disc disease is a condition in which the discs that cushion the spine between the vertebrae degenerate, bulge or rupture and start pressing on the spinal cord or nerves. This causes pain and, in more serious cases, weakness or even paralysis of the legs. The damage can happen suddenly, even after a perfectly ordinary jump, or build up gradually, so it is not something to wait out.
- Lyme disease Infections Lyme disease is a bacterial infection passed to a dog by an attached tick. In Lithuania its bacteria are spread by the castor bean tick, which lives in woods, parks and long grass. Some infected dogs show no signs at all, while others develop painful joints weeks or months later; whether this disease is behind a dog's illness is for a vet to establish.
- Anaplasmosis Infections Anaplasmosis is a tick-borne bacterial infection whose bacteria settle inside white blood cells. In Lithuania it is spread, like Lyme disease, by the castor bean tick. Some infected dogs show no signs, while others develop a fever and a limp within a few weeks of the tick bite; what caused the illness is for a vet to establish.
Body systems: Bones and joints Infections