
Osteoarthritis
Osteoarthritis (often shortened to OA or simply called arthritis) is a common, progressive condition that affects many dogs and cats as they age. It causes ongoing inflammation and damage within the joints, leading to pain, stiffness, and reduced mobility.
While osteoarthritis cannot be cured, many pets can live comfortably for months or years with the right support, treatment, and lifestyle adjustments. Your regular veterinarian is best placed to guide you through diagnosis and long-term management.
What is Osteoarthritis?
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Osteoarthritis occurs when the protective cartilage within a joint gradually wears away. As this cushioning is lost:
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Bones rub against each other
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Inflammation develops within the joint
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Movement becomes painful and restricted
Over time, this can lead to muscle loss, reduced activity, and changes in behaviour.
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Which Pets Are Affected?
Osteoarthritis can affect any age or breed, but it is more common in:
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Senior pets
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Larger or heavier dogs
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Pets with previous joint injuries
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Animals with hip or elbow dysplasia
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Overweight pets
Cats are also commonly affected, although they often hide pain more subtly than dogs.
Signs of Osteoarthritis
Pets experience pain differently, and signs may be gradual and easy to miss, especially early on.
Common signs include:
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Stiffness, especially after rest
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Reluctance to jump, climb stairs, or go for walks
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Slowing down or tiring more quickly
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Lameness or limping
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Difficulty getting up or lying down
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Changes in posture or gait
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Reduced grooming (particularly in cats)
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Behaviour changes such as irritability, withdrawal, or restlessness
If you notice any of these changes, your vet can assess whether osteoarthritis may be contributing.
Diagnosis and Veterinary Support
Your regular veterinarian will diagnose osteoarthritis based on:
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A physical examination
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Your observations at home
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X-rays or other imaging where appropriate
Because osteoarthritis is a long-term condition, treatment plans are often adjusted over time to suit your pet’s needs and comfort.
Management and Treatment Options
There is no single approach that suits every pet. Most osteoarthritis plans involve a combination of treatments, which may include:
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Pain-relief and anti-inflammatory medications
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Joint supplements or specialised diets
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Weight management
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Controlled exercise and physiotherapy
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Environmental changes (ramps, soft bedding, non-slip flooring)
Your vet will guide you on what is safest and most effective for your individual pet.
Quality of Life Considerations
With good support, many pets with osteoarthritis continue to enjoy:
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Gentle walks
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Comfortable rest
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Interaction with their family
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A good appetite and interest in their surroundings
However, osteoarthritis can progress despite treatment. In advanced stages, pain and mobility issues may begin to significantly affect a pet’s quality of life.
When Comfort Becomes the Priority
For some pets, there may come a time when pain can no longer be adequately controlled, or daily activities become distressing despite best efforts. This can be an emotionally difficult period for families.
Discussing your pet’s comfort, mobility, and overall wellbeing with your regular veterinarian can help you understand when supportive care — and eventually end-of-life decisions — may be kindest.
We’re Here to Support You
If you are reading this as part of a wider conversation about your pet’s comfort or quality of life, please know that you are not alone. We work closely alongside your regular veterinarian to ensure any decisions are made with care, compassion, and your pet’s dignity at heart.
If you would like to talk through your concerns or ask questions about home euthanasia, we are here to listen.

