Intervertebral Disc Disease, or IVDD, in dogs is a spinal condition where one or more intervertebral discs degenerate and may protrude or extrude into the spinal canal, causing pain and sometimes spinal cord compression. It can cause back or neck pain, weakness, a wobbly gait, dragging paws, loss of bladder control or paralysis. Because IVDD affects the spinal cord and nerves, prompt veterinary assessment is important, especially if your dog suddenly cannot walk or appears severely painful.

For many dog owners, the first question is simple: “Does my dog need an X-ray, CT scan or MRI?” The answer depends on the dog’s symptoms, neurological examination and how urgent the situation is. X-rays may help assess the bones of the spine and rule out some other problems, while MRI, CT or referral imaging may be needed to localise a lesion and guide treatment planning.

What Is IVDD in Dogs?

IVDD stands for Intervertebral Disc Disease. The spine is made up of small bones called vertebrae, with soft discs sitting between them. These discs act like cushions, allowing the spine to bend and absorb movement. When a disc becomes damaged, its material can bulge or rupture into the space around the spinal cord.

This pressure can irritate or compress the spinal cord and nearby nerves. In mild cases, a dog may show pain, stiffness or reluctance to move. In more serious cases, the dog may become weak, lose coordination, drag the back legs or become unable to stand. IVDD is often called a slipped disc, herniated disc or disc disease.

Some cases appear suddenly, especially in breeds with early disc degeneration. Other cases develop gradually as the disc changes over time. The severity depends on the location of the affected disc, the amount of pressure on the spinal cord and whether neurological function is still intact.

Common Signs of IVDD in Dogs

The signs of IVDD can vary from subtle discomfort to a true emergency. Owners may first notice that their dog is quieter than usual, reluctant to jump onto furniture or hesitant to climb stairs. Others may show sudden weakness or pain after normal activity.

· Back or neck pain

· A hunched or tense posture

· Crying when picked up

· Reluctance to jump, climb stairs or walk

· Wobbly walking or loss of balance

· Dragging paws or knuckling

· Weakness in the back legs

· Sudden inability to stand or walk

· Loss of bladder or bowel control

· Panting, trembling or hiding because of pain

Neck IVDD may cause a dog to hold the head low or avoid turning the neck. Back IVDD often affects the hind legs and may cause weakness, poor coordination or paralysis. If your dog suddenly cannot walk, is dragging the back legs or is very painful, seek veterinary attention as soon as possible.

Is IVDD an Emergency?

IVDD can be an emergency when neurological signs are present. A dog with mild back pain but normal walking should still be examined by a veterinarian, but a dog that cannot stand, is rapidly worsening or has lost bladder control needs urgent care.

Spinal cord compression can become more serious over time. Early assessment helps the veterinarian decide whether the dog may be managed with strict rest and medication, needs additional imaging, or should be referred for surgical assessment. Waiting too long, forcing the dog to walk or massaging the painful area may increase risk in some cases.

A simple way to think about urgency is this: pain alone is concerning, weakness is more concerning, and paralysis or loss of bladder control is urgent. If you are unsure, it is safer to call a veterinary team and describe exactly what you are seeing.

Which Dogs Are More at Risk?

Any dog can develop IVDD, but some breeds are more predisposed because of their body shape or inherited disc changes. Dogs with long backs and short legs are often at higher risk, although larger breeds can also be affected.

· Dachshunds

· Corgis

· French Bulldogs

· Beagles

· Shih Tzus

· Basset Hounds

· Pekingese

· Lhasa Apsos

· Cocker Spaniels

· Some larger breeds, including German Shepherds and Doberman Pinschers

Risk can also be influenced by age, weight, trauma, repeated jumping and previous spinal problems. Owners of high-risk dogs should take early signs seriously, especially stiffness, back pain, reluctance to move or changes in walking.

How Is IVDD Diagnosed?

Diagnosis starts with a physical and neurological examination. The veterinarian will assess pain, posture, walking ability, reflexes, paw placement and whether the dog can feel and respond to stimulation. This helps localise where the problem may be in the nervous system.

Imaging is considered after the clinical examination when additional information is needed. The choice of imaging depends on the dog’s condition and what the veterinary team needs to clarify. X-rays, CT and MRI do not all answer the same question. A dog may need one test, more advanced imaging, or urgent referral depending on the severity of the signs.

Can X-rays Diagnose IVDD in Dogs?

For dogs with back pain, X-rays have important clinical value, but they also have diagnostic limitations. A standard X-ray shows bones well and may help identify fractures, spinal alignment changes, arthritis, disc space narrowing, mineralised discs or other bone-related concerns. It may also help rule out some non-IVDD causes of pain.

However, X-rays do not show the spinal cord and soft disc material in detail. This means an X-ray alone may not confirm the exact degree of spinal cord compression. If a dog has significant neurological signs, the veterinarian may recommend advanced imaging such as CT or MRI to better understand what is happening around the spinal cord.

When Might a CT Scan Be Recommended?

A CT scan creates high-resolution cross-sectional and three-dimensional images, and can show finer structural detail than a standard X-ray. CT can be helpful when the veterinarian needs to assess complex spinal or bony changes, identify mineralised disc material, localise selected lesions, or plan further treatment. In some cases, CT may be part of the decision-making process before surgery or referral, while MRI may still be preferred for detailed spinal cord assessment.

At Concordia Pet Care, diagnostic imaging services include digital X-ray and CT scan, supporting veterinarians in the investigation of complex conditions. For suspected IVDD, the imaging recommendation will depend on the dog’s neurological examination, pain level, ability to walk and overall health.

What About MRI?

MRI can be used to assess the spinal cord, nerves and soft tissue structures, and may show subtle changes within the spinal cord. It may be recommended in severe cases, unclear cases or when detailed assessment of the spinal cord is needed. Not every dog with suspected IVDD needs MRI immediately, but dogs with paralysis, worsening signs or uncontrolled pain may require advanced imaging and specialist evaluation.

Your veterinarian will explain which imaging option is most appropriate based on the clinical picture. The most important point is that imaging should support a treatment decision, not simply be performed because a keyword appears on a search result.

Treatment Options After Diagnosis

Treatment depends on severity. Mild cases, where the dog can still walk and neurological signs are limited, may be managed conservatively with strict activity restriction, pain control, medication selected by the veterinarian and close monitoring. Rest is not casual rest; it often means carefully restricted movement and no jumping, stairs or rough play.

More severe cases may require urgent advanced imaging and specialist surgical assessment. Surgery may be recommended when there is significant spinal cord compression, worsening neurological function, inability to walk or severe pain that cannot be controlled. The goal is to relieve pressure on the spinal cord and give the nerves the best chance to recover.

Recovery and Home Care

Recovery from IVDD can take weeks to months. Dogs managed medically often need strict activity restriction and follow-up examinations. Dogs recovering from surgery may need pain control, wound care, assisted toileting, controlled movement and rehabilitation support. Some dogs recover well, while others may have lasting neurological changes.

Home changes can reduce strain on the spine. Keep your dog at a healthy weight, avoid jumping from beds or sofas, use ramps where appropriate, provide non-slip flooring and consider a harness instead of pulling on the neck with a collar. These steps do not remove all risk, but they can help reduce unnecessary stress on the spine.

When Should You Contact a Vet?

Contact a veterinarian promptly if your dog has back pain, neck pain, wobbly walking, paw dragging, sudden weakness, reluctance to move or any loss of bladder control. Seek urgent care if your dog cannot stand, cannot walk, is crying in pain or deteriorates quickly.

At Concordia Pet Care, our diagnostic imaging service supports dogs, cats, birds and exotic pets with digital X-ray, ultrasound, CT scan and endoscopy. If your dog has suspected spinal pain or neurological signs, our veterinary team can assess your pet, discuss appropriate imaging options and explain the next steps clearly.

FAQs About IVDD in Dogs and Diagnostic Imaging

What is IVDD in dogs?

IVDD is a spinal condition where a disc between the vertebrae bulges, degenerates or ruptures and puts pressure on the spinal cord. It can cause pain, weakness, walking difficulty or paralysis.

Can an X-ray show IVDD in dogs?

X-rays can show bones, spinal alignment and some disc-related changes, but they may not show spinal cord compression clearly. CT or MRI may be recommended when more detailed imaging is needed.

When is IVDD an emergency?

IVDD may be an emergency if the dog cannot stand or walk, is rapidly worsening, has severe pain, or loses bladder or bowel control. These signs should be assessed urgently.

Does every dog with suspected IVDD need CT or MRI?

No. Some mild cases may be managed based on examination and monitoring. Advanced imaging is more likely when signs are severe, worsening, unclear or when surgery is being considered.

Can dogs recover from IVDD?

Many dogs improve with appropriate care, but recovery depends on severity, timing, neurological status and treatment choice. Early veterinary assessment gives the best chance of choosing the right plan.

Should I massage my dog’s back if I suspect IVDD?

No. Avoid massage, stretching or forcing movement until your dog has been assessed by a veterinarian. Improper handling may worsen pain or injury.

Concordia Pet Care's veterinary team is here to provide professional guidance. Book a consultation today.

References:

• https://en.concordiapetcare.com/service/general/diagnostic-imaging/

• https://www.petmd.com/dog/conditions/neurological/intervertebral-disk-disease-dogs

• https://www.vet.cornell.edu/departments-centers-and-institutes/riney-canine-health-center/canine-health-information/intervertebral-disc-disease

• https://www.acvs.org/small-animal/intervertebral-disc-disease/