By Dial A Vet Veterinary Team
Last updated: 2 November 2026
A dog that hesitates before jumping into the car, takes a while to get up, or yelps when you touch the base of the tail may be dealing with more than stiffness. Spinal stenosis means narrowing of the space around the spinal cord or its nerve roots. In dogs it most often affects the lower back, where it is called degenerative lumbosacral stenosis, or the neck, as part of wobbler syndrome. Both can be managed, but they need a proper diagnosis because other serious spinal problems look similar.
Key takeaways
- Degenerative lumbosacral stenosis (DLSS) compresses the nerves at the base of the spine. It is most common in medium to large, middle-aged and older dogs, especially German Shepherds and working dogs.
- Wobbler syndrome (cervical spondylomyelopathy) compresses the spinal cord in the neck. It affects large and giant breeds such as Dobermans and Great Danes.
- Common lower back signs are reluctance to jump, slow rising, pain on stairs and back pain.
- Sudden weakness, wobbliness, inability to walk or loss of bladder control is an emergency.
- Diagnosis needs advanced imaging such as MRI or CT. Plain X-rays alone cannot confirm it.
- Many mildly affected dogs improve with rest, pain relief and lifestyle changes. Surgery is an option for some.
Lumbosacral stenosis (lower back)
The Merck Veterinary Manual describes DLSS as narrowing of the canal or openings at the lumbosacral junction, the joint between the last lumbar vertebra and the sacrum, which compresses the bundle of nerves there (the cauda equina). It results from disc degeneration and protrusion, thickening of a spinal ligament or, rarely, instability of the joint.
A 2019 review by Worth, Meij and Jeffery reports that DLSS is most common in medium to large breed dogs of middle to older age, with German Shepherds and working dogs predisposed. Affected dogs are typically over 25 kg, and males appear over-represented. Merck notes signs typically begin between 3 and 7 years of age and the condition is rare in cats.
Signs owners notice:
- Reluctance to jump, or pain when jumping, rising or climbing stairs
- Pain or stiffness during exercise
- Hind leg lameness or difficulty using the back legs
- Tail weakness or a low-carried tail
- Pain when the lower back is touched or extended
- Incontinence in some dogs
The Worth review notes that reluctance to jump and pain on rising or climbing stairs are reported in about 90% of affected dogs, and that most dogs present with low back pain rather than obvious nerve deficits.
Wobbler syndrome (neck)
Merck explains that cervical spondylomyelopathy, or wobbler syndrome, is compression of the spinal cord in the neck caused by abnormal development of the neck vertebrae. Two forms are described:
- Disc-associated, in middle-aged large breeds, especially Dobermans, typically starting around 7 years
- Bone-associated, in young giant breeds such as Great Danes, Mastiffs and Rottweilers, from several months to 4 years
Signs can come on suddenly or progress slowly. Mild cases show subtle wobbliness in all four legs, often a long, floating stride behind with short steps in front. Severe cases can lead to weakness or paralysis of all limbs. Neck pain is variable.
When to see a vet
Take your dog to your nearest vet clinic immediately if:
- Your dog suddenly cannot walk or stand
- Your dog is wobbly, dragging the legs or knuckling over on the feet
- Your dog cannot urinate or is leaking urine or faeces
- Your dog is in severe pain, crying out or trembling
These signs can also be caused by an acute disc rupture or other spinal emergencies, where early treatment matters.
Book a vet visit soon if your dog is reluctant to jump or use stairs, is slow to get up, carries the tail low, or seems stiff after exercise. These signs are easy to put down to age, but they deserve a check.
How vets diagnose spinal stenosis
Your vet will do a physical and neurological examination, often checking for pain when pressing on or extending the lower back. Merck notes that plain X-rays can show degenerative changes and help rule out other problems, but definitive diagnosis needs MRI, CT or special contrast studies. The Worth review stresses that other causes of similar signs, including tumours, disc and bone infection, and cysts, must be ruled out. Referral to a veterinary neurologist or surgeon is common.
Treatment
Treatment depends on the type of stenosis, how severe the signs are and your dog's lifestyle.
Non-surgical management. Merck notes that dogs with mild pain as the only sign of DLSS may improve with 4 to 6 weeks of rest. The Worth review describes conservative care using pain relief, anti-inflammatory medicines and lifestyle changes. Steroid injections into the space around the spinal nerves are another option your vet may discuss. For wobbler syndrome, Merck notes non-surgical care with exercise restriction, medication and weight loss if needed improves signs in about half of dogs.
Surgery. Merck recommends surgery when pain does not respond to medical treatment or there are nerve deficits. About 70 to 95% of dogs with DLSS improve after surgery, although existing urinary incontinence may not resolve. For wobbler syndrome, about 80% of dogs do well after surgery.
Living with a dog with spinal stenosis
- Use a harness instead of a collar, especially for neck problems
- Use ramps and limit jumping in and out of cars and onto furniture
- Keep your dog lean
- Follow your vet's exercise plan, which often means controlled lead walks rather than ball chasing
- Ask about rehabilitation or physiotherapy
FAQ
Is spinal stenosis the same as IVDD?
They overlap. Disc degeneration contributes to both, but stenosis describes narrowing of the canal, often from several structures together.
Can it be cured?
Many dogs improve and stay comfortable with management or surgery, but it is often a long-term condition.
Can I prevent it?
There is no proven way to prevent it. Keeping your dog fit and lean and acting early on signs gives the best chance of a good outcome.
Talk with a vet
If your dog is struggling to jump, rise or use stairs, Dial A Vet's real vets and vet nurses can watch your dog move on a video consult and help you decide on next steps with your local clinic. You may also find our guide to disc disease in dogs helpful. Book a video consult with Dial A Vet.
References
- Thomas WB. Degenerative Diseases of the Spinal Column and Cord in Animals. Merck Veterinary Manual.
- Worth A, Meij B, Jeffery N. Canine Degenerative Lumbosacral Stenosis: Prevalence, Impact And Management Strategies. Vet Med (Auckl). 2019;10:169-183.
Disclaimer: Educational only. This page does not replace an examination or advice from your own veterinarian. If you are worried about your pet right now, contact your local vet or nearest emergency animal hospital.