What Happens If IVDD Is Left Untreated?

Written by Oh My Tail Team 

Published on: 10 March 2026

Disclaimer: This article is for educational purposes only and is not a substitute for professional veterinary care. If your dog shows signs of pain, weakness, difficulty walking, or sudden changes in mobility, consult a qualified veterinarian promptly. In the UK, contact your local veterinary practice right away, or ask for a referral to a specialist such as a neurologist or orthopaedic surgeon. Early action is crucial for conditions like IVDD.

Introduction

Many owners ask the same worrying question: what happens if IVDD is untreated? The short answer is that untreated IVDD in dogs can gradually become more serious, because the damaged disc may continue pressing on the spinal cord.

Intervertebral disc disease affects the discs that sit between the bones of the spine. When one of these discs bulges or ruptures, it can put pressure on the spinal cord and nearby nerves. If this pressure is not relieved or managed, IVDD progression without treatment can lead to increasing nerve damage and worsening mobility problems.

In the early stages, a dog with intervertebral disc disease left untreated may show mild signs such as stiffness, reluctance to jump, or slight weakness in the back legs. However, as pressure on the spinal cord continues, symptoms can progress. Some dogs develop more obvious weakness, coordination problems, or severe back pain. In more advanced cases, untreated IVDD can lead to loss of movement in the hind legs or even paralysis.

The key thing to understand is that IVDD does not always stay at the same level. Without treatment or proper management, the condition can progress, and the longer the spinal cord remains under pressure, the higher the risk of permanent nerve damage.

Can IVDD Get Worse Without Treatment?

Yes, IVDD can get worse without treatment. In many dogs, the condition does not simply stay the same. When a damaged disc continues to press on the spinal cord, the pressure and inflammation around the nerves can gradually increase.

This is why IVDD progression in dogs is possible even if the early signs seem mild. A disc that is bulging or ruptured may continue to compress the spinal cord, which interferes with how nerve signals travel between the brain and the body. Over time, spinal cord compression in dogs can lead to increasing weakness, reduced coordination, and difficulty using the back legs.

In some cases the change is gradual, with worsening IVDD symptoms appearing over days or weeks. In other situations, the condition may suddenly deteriorate if the disc ruptures further. This is one reason veterinarians take IVDD seriously - even mild signs can progress if the underlying spinal pressure is not addressed.

What Happens Inside the Spine When IVDD Is Not Treated?

To understand why untreated IVDD can become serious, it helps to look at what is happening inside the spine. In dogs with IVDD, one of the discs between the spinal bones becomes damaged and may start to bulge or rupture. This is often described as disc herniation in dogs with IVDD or an intervertebral disc rupture in dogs.

When this happens, disc material can press directly against the spinal cord. The spinal cord carries signals between the brain and the rest of the body, so even a small amount of pressure can interfere with how these signals travel. This is known as spinal cord compression in dogs.

If the condition is not treated or managed, that pressure may continue. The compressed area of the spinal cord can become inflamed, and the surrounding nerves may start to lose their normal function. Over time, this ongoing pressure can lead to nerve damage in dogs with IVDD, which explains why symptoms such as weakness, loss of coordination, or difficulty walking can gradually appear or worsen.

Early Symptoms That May Get Worse Without Treatment

In the early stages, IVDD symptoms in dogs can be easy to miss. Many owners notice small changes and assume their dog has simply strained a muscle or is having a “bad day”. However, these mild signs can sometimes be the beginning of a spinal problem.

Common early IVDD symptoms in dogs may include subtle dog back pain related to IVDD, stiffness when getting up, or a dog that suddenly becomes reluctant to jump onto furniture or climb stairs. Some dogs also start walking with slightly unsteady back legs, especially after exercise or when they first stand up.

Because these signs can appear mild, it is not unusual for them to be ignored at first. The problem is that if the underlying disc problem remains, the pressure on the spinal cord may continue. This is why recognising IVDD symptoms early is important. What begins as mild discomfort or occasional wobbliness can sometimes develop into more noticeable weakness or coordination problems if the condition progresses.

What Happens If IVDD Continues to Progress?

If the condition continues to worsen, the symptoms often follow a recognisable pattern. The early stage may begin with mild discomfort or stiffness, but as pressure on the spinal cord increases, IVDD progression stages can lead to more obvious mobility problems.

One of the first noticeable changes is often weakness in the back legs caused by IVDD. A dog may start slipping on smooth floors, dragging their toes slightly, or struggling to keep balance while walking. As the spinal cord becomes more compressed, coordination can worsen and the dog may have difficulty standing or supporting their weight.

In more advanced stages, advanced IVDD symptoms may appear. These can include severe weakness, loss of normal movement in the hind legs, or an inability to walk. In the most serious cases, dog paralysis from IVDD can occur if the spinal cord becomes significantly compressed or damaged.

 

Can a Dog Become Paralysed If IVDD Is Untreated?

Yes, in some cases IVDD can lead to paralysis in dogs if the condition is left untreated. This happens when the damaged disc presses heavily on the spinal cord and begins to interrupt the nerve signals that control movement.

The spinal cord acts like a communication pathway between the brain and the body. When that pathway is compressed, the signals telling the legs how to move may not travel properly. As the pressure increases, dogs may first develop weakness in the hind legs, but in more serious cases the disruption of nerve signals can lead to IVDD paralysis in dogs.

The untreated IVDD paralysis risk depends on how severe the spinal cord compression becomes. Some dogs with severe IVDD may lose the ability to stand or walk with their back legs if the spinal cord is significantly affected. In certain situations, paralysis can develop quite suddenly if the disc ruptures further and rapidly increases pressure on the spinal cord.

What Happens If a Dog Loses Bladder Control?

Loss of bladder control can happen in severe IVDD in dogs, and it is usually considered a serious sign that the spinal cord is being affected. The nerves that control the bladder and bowel run through the spinal cord, so when those nerves are compressed, normal control can be disrupted.

In some dogs with IVDD and bladder control problems, this may appear as leaking urine, accidents in the house, or difficulty urinating normally. Owners sometimes notice that their dog cannot control their bladder with IVDD, even though the dog previously had no toilet issues.

This type of change can happen when spinal cord damage in dogs with IVDD interferes with the signals between the brain and the bladder. Because bladder dysfunction is often linked with significant spinal cord compression, it is commonly considered one of the more serious severe IVDD symptoms.

 

Is Damage From Untreated IVDD Reversible?

One of the most common questions owners ask is whether the damage caused by untreated IVDD can heal. The honest answer is that IVDD recovery in dogs depends largely on how much nerve damage has occurred and how quickly the condition is addressed.

When the spinal cord is compressed for a short time, the nerves may recover once the pressure is reduced. In these situations, some dogs regain strength and mobility as the inflammation settles. However, if nerve damage from IVDD in dogs continues for too long, the affected nerves may stop functioning properly.

This is why untreated IVDD recovery chances often become lower the longer the spinal cord remains compressed. In more serious cases, prolonged pressure can lead to permanent injury, making spinal cord damage recovery in dogs much more difficult. Early veterinary assessment is important because reducing pressure on the spinal cord as soon as possible gives the best chance for nerve function to recover.

When Should I See a Vet If I Suspect IVDD?

If you notice symptoms that could be related to IVDD, it is usually best to speak with a vet sooner rather than later. Many owners wonder when to see a vet for IVDD, especially if the signs seem mild at first. However, early changes in mobility or back pain can sometimes be the first warning signs of spinal cord pressure.

You should contact a vet if your dog shows sudden back pain, reluctance to move, difficulty jumping, or problems walking. One common concern owners report is that their dog’s back legs suddenly become weak, which is often a reason to arrange a veterinary check as soon as possible. Changes in coordination, dragging of the paws, or obvious discomfort should also be taken seriously.

There are also situations that may be considered IVDD emergency signs in dogs. These include a dog that suddenly cannot stand, loses movement in the hind legs, or develops problems controlling the bladder. If any of these symptoms appear, seeking veterinary advice quickly is important so the cause can be assessed and appropriate care can begin.

Key Takeaway for Dog Owners

The most important thing for owners to understand is that untreated IVDD in dogs can progress. What may begin as mild stiffness or occasional weakness can gradually turn into more serious mobility problems if pressure on the spinal cord continues.

Because IVDD progression in dogs can be unpredictable, paying attention to early warning signs is essential. Recognising IVDD early and seeking veterinary advice can make a significant difference. Early care may help reduce pressure on the spinal cord and lower the risk of long-term nerve damage.

In simple terms, acting early gives a dog the best chance of protecting mobility and maintaining quality of life, even if IVDD is suspected.

We focus on helping owners support dogs with mobility and comfort issues.

This article is for informational purposes and should not replace professional veterinary care.