Academy · Life stages
Hind leg weakness in dogs: causes and help in old age
When the hind legs start to weaken, age is not always the reason. Find out which causes are possible and how you can support your dog.
Is your dog finding it harder to get up, do its hind legs slip away or do its claws scrape along the ground when it walks? Changes like these can indicate hind leg weakness. In older dogs in particular, they are often seen as a normal sign of ageing. Yet various diseases of the musculoskeletal or nervous system can be behind them. What matters is having the cause investigated early. Depending on the condition, targeted exercise, physiotherapy, pain management or other veterinary measures can help maintain your dog’s mobility and quality of life.
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How can you recognise hind leg weakness in dogs?
Hind leg weakness describes reduced strength, stability or control of the hind limbs. Affected dogs may, for example, have difficulty getting up, their hind paws may slip away or they may walk unsteadily. Some dogs scrape their claws along the ground, knuckle over on their hind paws or gradually lose muscle. Others avoid stairs, no longer jump into the car or take longer to get up from lying down. These changes can have orthopaedic, neurological or muscular causes. Hind leg weakness is therefore not a diagnosis in itself but a symptom that should be investigated by a vet.
At a glance:
- Typical signs: difficulty getting up, an unsteady gait, hind paws slipping away, scraping claws or loss of muscle.
- Possible causes: joint disease, neurological disease, muscle weakness or age-related changes.
- When to see a vet? New or worsening problems should be examined promptly. Sudden paralysis, severe pain or new problems passing urine or faeces require immediate veterinary attention.
In detail
What causes hind leg weakness?
Other possible causes
Injuries, metabolic diseases, tumours or systemic diseases can also cause weakness and movement disorders.
Is hind leg weakness just old age?
No. Even though muscles, joints and mobility change with age, hind leg weakness should not simply be dismissed as a normal sign of ageing. Various diseases or functional limitations can be behind it. Depending on the cause, symptoms can be treated, mobility improved or the progression of functional limitations specifically managed. Examples include osteoarthritis, muscle loss or spinal disease. An early veterinary examination helps to narrow down the cause and initiate suitable measures. The aim is to maintain the dog’s mobility, independence and quality of life for as long as possible.
What helps a dog with weak hind legs?
Which measures make sense depends on the cause of the hind leg weakness. While targeted pain management can be important for painful joint disease, muscular limitations often call primarily for maintaining mobility and appropriate muscle building. Neurological diseases, in turn, require different treatment and care.
- Investigate the cause: an orthopaedic and, if necessary, neurological examination forms the basis of treatment
- Optimise body weight: a healthy body weight can reduce the load on the joints
- Keep moving: regular exercise adapted to the dog’s health can help maintain mobility and muscle
- Physiotherapy and muscle building: targeted exercises can support strength, coordination and mobility
- Treat pain: painful conditions may require pain management agreed with a vet
- Adapt the home: non-slip mats, ramps and suitable support harnesses can make everyday life easier
How can gait analysis reveal changes in the hind limbs?
In older dogs, changes in gait often develop gradually. If you see your dog every day, you may not notice small differences straight away. An objective gait analysis with LupoGait records selected movement parameters and makes it possible to compare them across several measurements. These include, for example, temporal gait parameters, asymmetries between the limbs and (depending on the sensor configuration) certain joint angles. In dogs with hind leg weakness, such measurements can provide additional information on how the movement pattern changes over time. During rehabilitation or with chronic conditions in particular, repeated measurements can help to document functional changes and interpret them together with the clinical findings. However, gait analysis replaces neither the orthopaedic nor the neurological examination, and it cannot determine the cause of hind leg weakness on its own.
When is hind leg weakness in dogs an emergency?
Sudden weakness or paralysis of the hind limbs should be examined by a vet immediately. This applies in particular if the dog can no longer stand or walk on its own, shows severe pain or also has problems passing urine or faeces. Such symptoms can indicate, among other things, an acute disorder of the spinal cord or nerves. A prompt examination is important, as timely treatment can be decisive for certain causes.
Hind leg weakness in dogs: three possible origins
| Joints | Muscles | Nervous system |
|---|---|---|
| Osteoarthritis | Muscle loss | Intervertebral disc disease |
| Hip dysplasia | Lack of exercise | Cauda equina syndrome |
| Stifle (knee) disease | Muscle disease | Degenerative myelopathy |
Sources
Coates JR, Wininger FA (2010). Canine degenerative myelopathy. Veterinary Clinics of North America: Small Animal Practice, 40(5), 929–950. DOI: 10.1016/j.cvsm.2010.05.001.
Monteiro BP et al. (2023). 2022 WSAVA guidelines for the recognition, assessment and treatment of pain. Journal of Small Animal Practice, 64, 177–254. DOI: 10.1111/jsap.13566.
Millis DL, Levine D (2014). Canine Rehabilitation and Physical Therapy. 2nd edition. Elsevier.
Frequently asked questions
Whether hind leg weakness improves depends on its cause. With muscle loss or painful joint disease, suitable treatment, physiotherapy and adapted exercise can often improve mobility. Other diseases, such as degenerative myelopathy, are progressive. An early diagnosis helps to set realistic treatment goals.
When a dog is considered a senior depends on its breed, size and individual development, among other things. Large and giant breeds often reach their senior years earlier than smaller dogs. However, it is not just age that matters but also general health and physical fitness.
When a dog’s hind legs buckle or slip away, there can be various causes. These include muscle weakness, painful joint disease or neurological disorders. Repeated knuckling of the paws or scraping of the claws in particular can indicate impaired movement coordination. The cause should be investigated by a vet.
If an older dog suddenly can no longer get up or move its hind legs, it should be examined by a vet immediately. If the difficulties increase slowly, prompt investigation is also advisable. Until then, non-slip mats and suitable help with getting up can make a difference. Which further measures are appropriate depends on the underlying condition.
Maintain mobility. Monitor changes in movement objectively.
When a dog’s hind legs grow weaker, it is important to notice changes in gait early and follow how they develop. An objective gait analysis with LupoGait can help to document movement parameters and compare them across several measurements. This gives vets and other professionals additional information for assessing the mobility of older dogs as part of examination and rehabilitation.