Seeing your dog’s back legs trembling can be scary. Leg tremors can happen for a variety of reasons, and while some are benign, others point to an underlying health problem. It’s important to pay attention to your dog and understand what might be causing their back legs to tremble.
Sudden changes in your dog’s behavior or physical abilities should always be checked out by a vet. If you notice your dog’s back legs trembling, schedule an appointment to get a diagnosis.
This article will cover the potential causes of dog back leg trembling, associated symptoms to watch for, how your vet will diagnose the problem, and what treatment options are available. We’ll also touch on some things you can do at home to keep your dog comfortable.
Why are my dog’s back legs shaking? Potential causes explained
There are many reasons why your dog’s back legs might be shaking. Here are some of the most common:
Neurological disorders and leg shaking
Neurological disorders can affect a dog’s coordination and muscle control, which may lead to shaky legs. Epilepsy, for example, can cause tremors and seizures that affect the legs. Degenerative myelopathy, a progressive disease that affects the spinal cord, is more common in certain breeds like German Shepherds, and can cause weakness and shaking in the hind legs.
Nerve damage and spinal cord issues can also lead to leg shaking. Intervertebral disc disease (IVDD), a condition where the discs between the vertebrae bulge or rupture, can put pressure on the spinal cord and cause pain, weakness, and shaking in the back legs.
Musculoskeletal issues leading to leg shaking
Musculoskeletal problems can cause pain and instability, which can manifest as shaking legs. Arthritis, hip dysplasia, and luxating patella (a dislocating kneecap) are common culprits.
Ligament injuries, such as a torn cranial cruciate ligament (CCL), can also contribute to shaking and instability in the hind legs.
Other medical conditions
Sometimes, leg shaking can be a sign of an underlying medical condition. Hypoglycemia, or low blood sugar, can cause tremors and shaking, particularly in small breeds.
Certain poisons can also cause tremors, including in the back legs. Parasites, metabolic disorders, autoimmune diseases, and infections can sometimes be factors as well.
What do dog leg tremors mean?
First, it’s important to distinguish between a normal tremor and an abnormal one. If your dog has been running around and playing, or if they’ve been out in the cold, a little shaking is probably no big deal. But if your dog’s legs are trembling even when they’re resting, that’s a sign that something might be wrong.
Pay attention to when and how the shaking happens. Does it occur when your dog is lying down, standing up, or moving around? The context can sometimes give you a clue about what’s going on.
You should seek veterinary attention immediately if you notice any of the following:
- Frequent tremors
- Tremors that get worse over time
- Tremors that are accompanied by other symptoms, like diarrhea, vomiting, or lethargy
How will the vet diagnose the cause of my dog’s shaking legs?
Your vet will perform a thorough physical exam to get a better idea of what’s going on. After that, they’ll likely recommend some tests.
Some common diagnostic tests include:
- X-rays: These help the vet see the bones and joints to check for arthritis, injuries, or other abnormalities.
- Blood tests: Bloodwork can reveal metabolic problems, infections, or other underlying health issues that could be causing the tremors.
- Urinalysis: Analyzing your dog’s urine can provide more clues about their overall health and rule out certain conditions.
- CT scans and MRIs: These advanced imaging techniques provide detailed pictures of the spine and brain, which can be helpful for identifying neurological problems.
The specific tests your vet recommends will depend on what they suspect is causing your dog’s leg shaking.
Treatment Options for Hind Leg Shaking in Dogs
The right treatment for your dog’s trembling back legs will depend on what’s causing the problem. Here are some options your vet may suggest.
Medicinal Treatments
If arthritis or a musculoskeletal problem is the culprit, your veterinarian may recommend anti-inflammatory medications to reduce swelling and pain. For pain management, pain relievers can be very helpful. In the case of neurological disorders such as epilepsy, anticonvulsants may be prescribed to control seizures and reduce trembling.
Physical Therapy and Rehabilitation
Physical therapy can play a huge role in helping your dog regain strength and coordination. Controlled walking and swimming are great exercises that can help rebuild muscle and improve joint function. During rehabilitation, assistive devices such as slings or harnesses can provide support and stability.
Lifestyle Modifications
Sometimes, simple changes to your dog’s routine can make a big difference.
- Balanced Diet: Make sure your dog is eating a balanced, age-appropriate diet to maintain overall health and muscle strength.
- Regular Exercise: Regular exercise helps keep muscles strong and joints healthy.
- Joint Supplements: Talk to your vet about whether supplements like omega-3 fatty acids and glucosamine could benefit your dog’s joints.
- Weight Management: Keeping your dog at a healthy weight reduces the stress on their joints, which can alleviate trembling.
How assistive devices can help
If your dog’s back legs are trembling, it’s time to talk to your vet about whether assistive devices can help.
Dog wheelchairs (sometimes called K9 carts) can help dogs with mobility issues regain a sense of independence and improve their quality of life. These devices are particularly helpful for dogs with degenerative myelopathy or other conditions that limit their ability to walk or stand.
It’s important to remember that assistive devices aren’t a cure. They won’t stop the underlying condition that’s causing the trembling. But they can give your dog a chance to enjoy life more fully, even with limited mobility. Many people find that assistive devices improve their dog’s mood and overall well-being.
Closing Thoughts
If you notice your dog’s back legs trembling, it’s essential to seek veterinary care as soon as possible. Early diagnosis is key to managing the underlying cause and improving your dog’s quality of life.
We’ve covered a lot in this article, from potential causes like arthritis, IVDD, and neurological issues to diagnostic procedures your veterinarian might use, such as physical exams and imaging. Treatment options can vary widely depending on the diagnosis, ranging from medication and physical therapy to, in some cases, surgery.
While leg tremors can be concerning, remember that with appropriate veterinary care and management, many dogs with this condition can still live happy and fulfilling lives. Don’t hesitate to reach out to your veterinarian for professional help and to follow their guidance to ensure the best possible outcome for your furry friend.