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Why Is My Cat Limping? Causes and When to See a Vet

A limping cat always warrants attention, even if they seem otherwise well. Cats are expert at masking pain — if a limp is visible, the discomfort is often more significant than it appears. Here's what commonly causes limping in cats and when it needs urgent care.

Common Minor Causes of Limping

The most common minor causes of a sudden limp in an otherwise well cat include a soft tissue injury (sprain or strain from jumping or a small fall), a wound or bite from another animal, a thorn, piece of grit or other foreign body in the paw, an overgrown or split nail, and a sting or bee encounter.

Inspect the paw carefully for visible wounds, swelling, or anything embedded in the skin or between the toes. Bite wounds from other cats are particularly common in male outdoor cats and should not be ignored even if small — cat bite abscesses develop rapidly and are painful, requiring antibiotic treatment.

If a mild limp appeared after activity and there's no visible wound, rest for 24–48 hours is reasonable. If it's not improving within 24 hours, or worsening, a vet visit is warranted.

Road Traffic Injuries and Fractures

Road traffic accidents (RTAs) are one of the most common causes of severe limping in outdoor cats, along with falls from height (high-rise syndrome). Both can result in fractures, dislocations, internal injuries and traumatic brain injury.

A cat that has suffered trauma may not show the full extent of its injuries immediately — adrenaline can mask pain temporarily. If you know or suspect your cat has been hit by a car or fallen from height, veterinary examination is needed regardless of how well the cat appears in the immediate aftermath.

Fractures can be managed surgically (plates, pins, external fixators) or with splinting depending on the location and severity. Referral to a specialist orthopaedic surgeon may be needed for complex fractures. Costs can range from several hundred to several thousand pounds depending on the extent of injury.

Arthritis in Cats

Osteoarthritis is far more common in cats than many owners — and many vets — have historically appreciated. Studies suggest that over 90% of cats over 12 years of age have radiographic evidence of arthritis, though clinical signs vary considerably.

Arthritis in cats presents differently than in dogs. Rather than obvious limping, arthritic cats often show reduced jumping height, difficulty accessing the litter tray (or missing the tray), reduced grooming of hard-to-reach areas, reluctance to go outdoors, and personality changes. Limping may appear only in cold weather or after rest.

Management includes multimodal pain management (prescription analgesics, omega-3 fatty acids), environmental modifications (ramps, lower-sided litter trays, heated beds), physiotherapy and weight management. Monthly injections of monoclonal antibody (Solensia) offer a significant advance in feline arthritis management.

Aortic Thromboembolism: A Sudden Emergency

Aortic thromboembolism (ATE) — sometimes called 'saddle thrombus' — is one of the most dramatic and distressing emergencies in feline medicine. A blood clot lodges at the aortic bifurcation (where the main artery divides to supply the hind legs), causing sudden, complete loss of function and sensation in both rear legs.

Affected cats present with sudden, complete inability to use their hind legs, crying in pain, cold hind limbs with no pulse in the back feet, and blue-tinged toe pads (due to lack of circulation). It typically occurs secondary to hypertrophic cardiomyopathy (the most common heart disease in cats) or other cardiac conditions.

ATE is a genuine emergency. Contact an emergency vet immediately. Prognosis is guarded to poor, and treatment decisions should be made with honest veterinary guidance. Some cats recover partial function with supportive care; others do not. Many affected cats have significant underlying heart disease that affects long-term prognosis.

When to Go Straight to Emergency

Go to an emergency vet immediately for: sudden complete inability to use one or more legs; cold, pale or blue-tinged limbs; obvious fracture or severe trauma; a cat that cannot bear any weight and is crying in pain; any known or suspected road traffic accident or fall from height.

Book an urgent vet appointment (within 24 hours) for: a limp that is not improving after rest; swelling, heat or wound at the affected limb; a cat that continues to limp after 48 hours; a cat reluctant to bear weight but not in obvious acute distress.

Monitor for: mild limp after activity with no wound, that improves significantly with 24 hours of rest. If there is any doubt, contacting your vet for telephone triage guidance is always the right approach.

Find a Vet Near You

For urgent limping, knowing where your nearest emergency vet is matters. Use CompareMyVet at app.comparemyvet.uk to find and compare vet practices near you, including out-of-hours emergency services, before a crisis occurs.