How can I differentiate between neurological problems and other health issues in dogs?

Seeing your dog suddenly become unsteady, weak, confused or behave differently can be extremely worrying. Your first thought may be that something is wrong with their brain or nervous system, particularly if your dog is older or already living with other health problems. 

However, many neurological symptoms can look similar to signs caused by other conditions. Arthritis, heart disease, low blood sugar and even severe pain can all change the way a dog moves or behaves. 

So, how can you tell the difference? 

While only a veterinary examination can determine what is happening, understanding the signs can help you recognise when your dog needs help and give your vet useful information. 

What is a neurological problem in dogs? 

The nervous system includes the brain, spinal cord and the network of nerves running throughout your dog’s body. Problems affecting any of these areas can change how your dog moves, balances, responds to their surroundings or controls their body. 

Signs that could indicate a neurological problem include: 

• Loss of balance or coordination 

• Walking in circles 

• A persistent head tilt 

• Tremors or involuntary movements 

• Seizures 

• Sudden behavioural changes or confusion 

• Weakness or paralysis in one or more legs 

• Dragging or scuffing the paws 

• Difficulty placing the feet normally 

• Unusual eye movements 

• Loss of bladder or bowel control in combination with mobility problems 

The exact symptoms depend on which part of the nervous system is affected. For example, conditions affecting the brain may cause seizures or behavioural changes, while spinal cord problems are more likely to affect movement, strength and coordination. 

Could weakness be caused by something other than the nervous system? 

Yes. Weakness is one of the symptoms that can be particularly difficult to interpret. 

A dog with a neurological condition may appear weak because signals are not travelling normally between the nervous system and the limbs. However, dogs can also become weak because of conditions such as anaemia, heart disease, metabolic illness or severe dehydration. 

Pain can cause similar changes too. A dog with arthritis or another painful orthopaedic condition may become reluctant to walk, struggle to rise or appear weak in their back legs. 

One useful distinction is that orthopaedic problems often cause limping or reluctance to put weight through a painful limb. Neurological problems may cause more unusual movement, such as crossing the legs, wobbling, dragging the paws or appearing unaware of exactly where the feet are being placed. 

However, these differences are not always clear, particularly in older dogs who may have more than one condition at the same time. 

Is my dog having a seizure or fainting? 

Collapse is another symptom that can have very different causes. 

During a seizure, a dog may fall over and experience jerking or paddling movements, jaw movements, drooling or loss of bladder or bowel control. Afterwards, they may seem confused, restless or disorientated for some time. 

Fainting, or syncope, is usually caused by a temporary reduction in blood flow to the brain and may be associated with heart or circulatory problems. A dog experiencing syncope will often suddenly go limp and lose consciousness before recovering relatively quickly. 

There can be overlap between the two, so a video of the episode can be extremely valuable for your vet if it is safe for you to take one. 

What about balance problems? 

Sudden loss of balance can look particularly dramatic. 

Dogs with vestibular disease may develop a head tilt, fall to one side, walk in circles or develop rapid involuntary eye movements known as nystagmus. They may also feel extremely dizzy and nauseous. 

The vestibular system is part of the system controlling balance and has components within both the inner ear and brain. This means similar symptoms can occur because of problems involving the inner ear or more central neurological disease. 

Some dogs, particularly older dogs with idiopathic vestibular disease, can show severe-looking symptoms very suddenly, but then improve considerably with supportive care. Because more serious conditions can look very similar, however, a veterinary assessment is important. 

Can other illnesses cause neurological-looking symptoms? 

Several conditions elsewhere in the body can affect the brain and nervous system indirectly. 

For example, very low blood sugar can cause weakness, tremors, confusion, collapse or seizures. Problems involving the liver, kidneys, circulation or certain toxins may also lead to abnormal behaviour or neurological-looking symptoms. 

This is why diagnosing a neurological condition can be complex. 

Your vet may perform a general physical examination alongside a neurological examination, looking at your dog’s gait, posture, reflexes, coordination and responses. Depending on what they find, blood tests, urine tests, X-rays or advanced imaging such as an MRI or CT scan may be recommended. 

When should I seek urgent veterinary help? 

Contact a veterinary practice promptly if your dog suddenly: 

• Cannot stand or walk 

• Develops paralysis or severe weakness 

• Has their first seizure 

• Experiences repeated seizures or a prolonged seizure 

• Collapses or loses consciousness 

• Becomes extremely confused or unresponsive 

• Develops sudden severe balance problems 

• Appears to be in significant pain 

Rapid changes deserve particular attention, even if your dog seems to improve afterwards. 

You know what is normal for your dog 

You spend more time with your dog than anyone else, which means small changes may be noticeable to you before they are obvious during a veterinary appointment. 

Make a note of when the problem started, whether it appeared suddenly or gradually and whether it is getting worse. Videos of unusual walking, tremors, collapse or other episodes can also be incredibly helpful. 

When neurological problems affect quality of life 

For older dogs, or those living with chronic neurological disease, it is equally important to look at the bigger picture. Consider whether your dog can comfortably eat, drink, rest, move around, toilet and continue to enjoy the people and activities that matter to them. 

If your dog’s condition is progressing and you are becoming concerned about their comfort or quality of life, speaking openly with your vet can help you understand what may be happening and what options are available. 

Our compassionate team can also support families facing difficult decisions about their pet’s end-of-life care and help ensure their comfort and dignity remain at the heart of every decision.