IVDD in Dogs: Signs of a Slipped Disc and When It's an Emergency

What it usually means

Each disc in the spine has a tough outer ring and a soft, jelly-like center. In IVDD the disc degenerates, hardens and then either bursts suddenly or bulges slowly, pushing disc material up into the narrow canal that holds the spinal cord. The Merck Veterinary Manual notes the neck and the middle of the back are the most common sites. Where the disc fails decides the signs: neck discs mainly cause severe pain, while back discs more often cause weakness or paralysis in the hind legs.

Short-legged, long-backed breeds are at the highest risk. VCA lists Dachshunds, Beagles, Pekingese, Lhasa Apsos, Shih Tzus, Poodles, Cocker Spaniels and French Bulldogs, along with larger breeds such as German Shepherds and Dobermans. Most affected dogs are middle-aged, roughly three to seven years old. In small breeds the discs start degenerating early in life, so a jump off the sofa may simply be the moment an already weakened disc gives way.

Signs of IVDD in dogs

Early signs are often pain: a dog that yelps when picked up, will not lower its head to the food bowl, holds its neck stiffly, hunches its back, trembles, refuses stairs or jumping, or seems unusually quiet and reluctant to move. Some dogs have a tense, sore belly because they are bracing their spine.

As pressure on the cord increases, you may see wobbling or crossing of the back legs, knuckling over so the top of the paw drags, scuffed nails, weakness in all four legs with a neck disc, and finally paralysis. VCA describes the condition in stages, from mild pain only, through pain with wobbling, to paralysis with feeling still present, and finally paralysis with loss of deep pain sensation. Some dogs move from walking to fully paralyzed in under an hour.

When to call your vet today

Call your vet the same day if your dog shows back or neck pain, cries when touched or lifted, refuses to jump or climb stairs, or walks with a hunched, stiff posture, especially if it is one of the high-risk breeds. Early treatment and strict rest give the best chance of stopping a mild case from progressing.

Call immediately rather than waiting for an appointment if you notice any wobbling, stumbling, knuckling of the paws or weakness, even if your dog can still walk. A dog that is getting worse from one hour or day to the next needs to be reassessed quickly, because the treatment plan may need to change.

When it's an emergency

Go to your vet or the nearest emergency vet immediately if your dog cannot stand or walk, drags its back legs, cannot move its legs at all, or has lost control of its bladder or bowels. Sudden paralysis in a long-backed breed is a true emergency. The Merck Veterinary Manual reports that the chance of recovery drops if surgery is delayed more than 24 hours after pain sensation is lost, and VCA advises surgery as soon as possible for that stage.

Move your dog as little as possible. Slide it onto a flat board, a baking tray or a firm cushion, keep its back and neck straight, and confine it in a crate or box for the drive. Do not let it walk, jump or wriggle, and do not give any human pain relievers, which can be dangerous for dogs and can complicate the medicines your vet may use.

What you can safely do at home

For a dog with diagnosed mild IVDD, the most important home treatment is the strict rest your vet prescribes. That usually means confinement to a crate or small pen for several weeks, carried or leash-walked only for toilet breaks, with no stairs, furniture, jumping or play. Merck notes that dogs given pain medicine without strict rest can feel well enough to move around and make the disc worse.

Use a harness rather than a collar to take pressure off the neck, keep floors non-slip with rugs or mats, and help your dog in and out of the car. Watch closely each day for any change in walking, and call your vet at once if signs worsen. Never stop or change prescribed medicine without checking first.

What the vet will likely check

Your vet will perform a neurological exam, testing reflexes, how your dog places its paws, and whether it can feel a firm pinch on the toes. Deep pain sensation is one of the most important findings, because it guides how urgent surgery is and the outlook. X-rays can rule out other problems, but advanced imaging such as MRI or CT is needed to see exactly which disc is affected.

Dogs with pain or mild weakness are often treated medically, with strict rest plus medicine your vet chooses for pain and inflammation. VCA notes that surgery may be needed if signs persist after four to seven days or get worse, and it is usually recommended for paralyzed dogs. Surgery removes the disc material pressing on the cord. Recovery takes weeks and often includes physical rehabilitation, and Merck reports that signs come back in 30 to 40 percent of dogs.

Prevention

You cannot change a dog's genetics, but you can reduce strain on the spine. Keeping your dog lean is the most useful step, since extra weight increases load on the discs. Use ramps or steps for sofas, beds and cars, discourage repeated jumping down from height, and support the chest and rear together when you pick up a long-backed dog.

Walking on a harness rather than a collar is kinder to the neck, and regular moderate exercise keeps the supporting muscles strong. If your breed is at risk, learn the early signs and act on them quickly, because catching IVDD at the painful stage is far better than meeting it at the paralyzed one.

This page is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your pet.