When an older dog suddenly starts limping, it is tempting to assume arthritis has flared up. Osteoarthritis can certainly make movement painful, but a new or dramatic change should not automatically be blamed on arthritis. A torn ligament, fracture, paw injury, spinal problem, or infection may look similar at home and require different treatment.
Can arthritis appear suddenly?
Osteoarthritis is usually a long-term joint disease. Dogs may hide mild discomfort until a long walk, slippery-floor fall or change in activity makes it obvious. A dog with known arthritis can also develop an unrelated injury. The timing of the limp alone cannot identify the cause.
Warning signs that need prompt help
Seek urgent veterinary assessment if your dog will not bear weight, cries with movement, has an obvious deformity or swollen joint, drags a limb, seems weak, or develops fever, unusual lethargy or repeated vomiting. A fall or vehicle injury warrants immediate care even if your dog initially walks. If your pet cannot stand, has breathing trouble, or has severe uncontrolled pain, go to an emergency veterinary hospital.
What to do while arranging an examination
- Keep activity quiet. Use short, controlled leash trips for toileting; avoid jumping, running and stairs.
- Look briefly for an obvious torn nail or foreign material between the toes, but stop if inspection causes pain.
- Use nonslip rugs and help your dog navigate slippery areas. Do not force painful stretches or massage a swollen joint.
- Record when the limp began, which leg is affected, any recent unusual activity, and whether your dog is still eating normally.
- Do not give human painkillers or leftover pet prescriptions without veterinary direction. Several human anti-inflammatory drugs are dangerous for dogs.
How the veterinarian determines the cause
The examination may include watching your dog walk, checking joints and paw pads, assessing nerves and reflexes, and recommending radiographs or other tests. Arthritis is often considered alongside injury, infection and neurologic disease. An x-ray can help identify bony changes but does not answer every question about ligaments or nerves.
If arthritis is confirmed
Long-term care usually combines weight management, thoughtfully paced exercise, changes to the home environment and veterinarian-prescribed pain control. The best plan depends on other illnesses and medication risks. Avoid the idea that there is one “best” arthritis drug for every dog. Read our guide to diet and arthritis for ways nutrition may support a healthy body condition, and see the urgent arthritis warning signs article.
How quickly should the dog be seen?
A mild limp that resolves quickly is different from a dog who will not use a leg. Because owners cannot reliably distinguish a flare from a new injury, contact a veterinarian promptly about sudden lameness and ask what time frame is appropriate. Keep your dog comfortable and safely confined while you make arrangements.
Reference: VCA Animal Hospitals, Helping Your Dog with Osteoarthritis. General education only.
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.