Can Dogs Get High Blood Pressure? Warning Signs Every Owner Should Know

Can dogs get high blood pressure? You bet they can — and it’s something that often goes undetected until it starts causing serious issues. When I first started working as a Veterinary Assistant, I didn’t realize how many conditions could be traced back to elevated blood pressure in our canine patients. It’s not just a “human” problem — dogs can suffer too, and trust me, it can sneak up on even the healthiest-looking pup. I’ve seen cases where the only hint was a dog acting just a little off. That’s why I’m excited (and a little fired up) to talk about this topic — because if you’re a dog parent, you absolutely need to know the signs, causes, and how to help your four-legged best friend.

What Exactly *Is* High Blood Pressure in Dogs?

So, high blood pressure in dogs — also known as *canine hypertension* — is when a dog’s blood pressure stays consistently higher than what’s considered normal. A healthy blood pressure reading for dogs typically falls around 120/80 mmHg, kind of similar to us humans. When it creeps above 150/95 mmHg, vets start to get concerned.

There are actually *two types* of hypertension in dogs:

• Primary hypertension: This is rare in dogs and doesn’t have a known cause — kind of like drawing the short straw genetically.
• Secondary hypertension: This is the one I see the most in practice. It’s usually linked to an underlying health issue like kidney disease, Cushing’s disease, diabetes, or even obesity.

Why Should You Worry? What Can High Blood Pressure Do to Your Dog?

I’ll be blunt — untreated high blood pressure in dogs can lead to some pretty serious damage. We’re talking about things like:

1. Kidney damage – The kidneys are often the first to take a hit. It’s a vicious cycle too: kidney issues can cause high blood pressure, and then high blood pressure worsens the kidney issues.
2. Eye problems – I’ve seen dogs come in blind from retinal detachment caused by hypertension. It’s heartbreaking because many owners didn’t know it was even a risk.
3. Neurological issues – High blood pressure can affect the brain. Dogs might start acting strange, pacing, whining, or having seizures.
4. Heart issues – The heart has to work harder against the increased pressure. Over time, that can cause serious strain and lead to heart failure.

In my experience, some of the trickiest cases were ones where the dog *looked* fine — maybe a little tired, or just “off” — but internally, things were quietly escalating. That’s why early detection is everything.

What Causes High Blood Pressure in Dogs?

If you’re wondering, “Can dogs get high blood pressure from diet alone?” — the answer is: not usually. While diet *does* play a role (especially with obesity), most canine hypertension is secondary to another medical condition. Here’s what I’ve seen trigger it most often in practice:

1. Kidney Disease

This is hands down the most common culprit. Damaged kidneys can’t regulate blood pressure well, and vice versa. It’s a nasty feedback loop. Often, the signs are subtle until things are advanced.

2. Cushing’s Disease (Hyperadrenocorticism)

When dogs produce too much cortisol, it can raise blood pressure significantly. I had one senior dog patient — a sweet poodle mix — who was gaining weight oddly and drinking a ton of water. Turned out, it was Cushing’s, and hypertension was part of the package.

3. Diabetes Mellitus

Though not every diabetic dog ends up hypertensive, there’s a clear link between poor glucose control and increased blood pressure. Another reason why regular monitoring is crucial.

4. Hypothyroidism or Hyperthyroidism

Thyroid imbalances can affect cardiovascular health, and I’ve seen some dogs go from lethargic to extremely restless due to these changes affecting their blood pressure.

5. Obesity

Yep, just like in people — extra weight puts more strain on a dog’s entire body. That includes the cardiovascular system. A pudgy pup might be adorable, but those extra pounds can silently increase risk factors.

So yeah, the answer to “Can dogs get high blood pressure?” is a big, resounding yes — and it’s more common than many pet parents realize. The good news? With awareness, regular vet checkups, and the right care plan, most dogs can lead full, happy lives even with hypertension. And honestly, just having this info puts you ahead of the game.

How Do You Know If Your Dog Has High Blood Pressure?

This is where it gets tricky. Most dogs with high blood pressure aren’t going to show obvious symptoms right away. I wish I could tell you there’s a clear-cut sign — like a fever or vomiting — but it’s often way more subtle. In my clinic days, we’d sometimes only catch it during routine bloodwork or because a dog came in for something totally unrelated, like increased drinking or vision issues.

That said, there *are* some red flags you can watch for. None of these mean your dog definitely has hypertension, but they’re worth mentioning to your vet:

• Sudden blindness or dilated pupils
• Seizures or disorientation
• Excessive drinking and urinating
• Nosebleeds (not super common, but they can happen)
• Behavioral changes — like restlessness or confusion

One thing I always remind pet parents is this: you don’t have to wait for symptoms to show up. If your dog has a chronic condition like kidney disease or diabetes, ask your vet to check their blood pressure regularly. It’s painless and quick, and honestly, it can prevent a ton of heartache down the line.

How Vets Diagnose Canine Hypertension

Okay, so let’s talk about how we actually check a dog’s blood pressure. It’s not *exactly* like when we get ours taken at the doctor, but it’s not far off either. In the clinic, we usually use a Doppler ultrasound device or an oscillometric monitor. Both are non-invasive and use a cuff — typically around a leg or the tail — to get a reading.

The key is to keep the dog calm. Stress or excitement can temporarily raise blood pressure (yep, just like in humans), which is why we usually let them relax for a few minutes before taking a reading. Honestly, I’ve had better luck with shy dogs than bouncy ones — the quieter they are, the more accurate the result.

Here’s the kicker though: one high reading isn’t enough. We usually take 5–7 readings, discard the outliers, and average the rest. That way we’re not misled by a fluke number. I remember one case where a healthy Labrador had a sky-high reading the first time — turned out she was just scared of the cuff. We retested a week later in a quieter room and her pressure was totally normal. So context really matters.

Can Dogs Get High Blood Pressure from Diet or Lifestyle?

This is a question I get *all the time* from pet parents, especially the ones who are super health-conscious (you know who you are — and I love it). The short answer is: diet and lifestyle don’t usually cause high blood pressure directly in dogs — but they definitely play a role in managing it and preventing secondary issues.

Here’s how lifestyle can affect blood pressure in dogs:

• Obesity: Hands down the biggest lifestyle-related factor. Extra weight puts added pressure on the heart and can lead to secondary hypertension. I always say, if you wouldn’t let your dog’s ribcage double as a beanbag, it might be time to reassess the snacks.
• Diet: Some commercial dog foods are super high in sodium. Most healthy dogs can handle it, but if your pup already has hypertension or kidney issues, it can make things worse. A balanced, low-sodium diet helps big time.
• Lack of exercise: Just like us, a sedentary lifestyle contributes to weight gain and overall poor cardiovascular health. Regular walks, playtime, and mental stimulation go a long way.

One of my favorite cases was a beagle named Toby. He was on the chunkier side, had early signs of kidney issues, and his blood pressure was creeping up. We worked with his owner on a custom low-sodium diet and daily walks (plus some puzzle toys to keep his brain busy). A few months later, not only did Toby slim down, but his blood pressure stabilized without needing meds. It was one of those small wins that felt huge.

When Is Medication Necessary?

Sometimes, no matter how much you tweak the diet or up the exercise, a dog still needs a little pharmaceutical support — and that’s totally okay. I’ve seen dogs thrive on medication once we found the right balance. Common meds include:

• Amlodipine: This is the go-to calcium channel blocker. It works well and is generally safe for long-term use.
• ACE inhibitors: Meds like enalapril or benazepril, especially helpful if the dog has kidney issues as well.
• Beta blockers or ARBs: These are used less commonly but can help in specific situations depending on the dog’s overall health.

Veterinarians usually start with low doses and monitor closely. And again, regular checkups and pressure readings are super important here — because too low a pressure is also dangerous.

One golden retriever I worked with — sweet girl named Luna — had hypertension linked to early kidney disease. Once we got her on the right combo of a renal-support diet and a low dose of amlodipine, she was like a new dog. More energy, better appetite, and her blood pressure stayed in a healthy range. It’s not always a one-size-fits-all situation, but that’s where individualized care makes all the difference.

Monitoring and Managing Canine Hypertension Long-Term

Once your dog is diagnosed with high blood pressure, it’s not just a one-and-done situation. Managing hypertension in dogs is a lifelong commitment, and regular monitoring is key. In my experience, dogs on medication need their blood pressure checked every 2–4 weeks initially, then every 3–6 months once stabilized. This helps ensure the treatment is effective and allows for timely adjustments.

According to the American College of Veterinary Internal Medicine (ACVIM), the treatment goal for a dog with hypertension is a systolic pressure of 160 mmHg or less. Periodic laboratory testing will be required to monitor for medication side effects and progression of disease. Regular blood pressure measurements will also need to be taken to ensure treatment continues to be successful. [Source]

Regular check-ups also allow your vet to monitor for any side effects from medications and to adjust dosages as needed. It’s a dynamic process that requires ongoing attention and care.

Nutrition Tips for Dogs with High Blood Pressure

Diet plays a significant role in managing your dog’s blood pressure. While diet alone may not cause hypertension, it can certainly exacerbate the condition if not properly managed. Here are some nutritional guidelines:

• Low-Sodium Diet: Reducing sodium intake can help manage blood pressure levels. Avoid feeding your dog processed foods, deli meats, and salty treats.
• Balanced Nutrients: Ensure your dog’s diet includes appropriate levels of protein, potassium, and omega-3 fatty acids. These nutrients support overall cardiovascular health.
• Hydration: Encourage your dog to drink plenty of water. Proper hydration supports kidney function and helps regulate blood pressure.

Veterinary therapeutic diets designed for dogs with heart disease have a nutrient profile that includes restricted dietary sodium and chloride, and enhanced nutrients that support heart function. [Source]

Always consult with your veterinarian before making any significant changes to your dog’s diet. They can recommend specific commercial diets or guide you in preparing balanced homemade meals tailored to your dog’s needs.

Preventive Measures and Lifestyle Adjustments

Prevention is always better than cure. Here are some steps you can take to reduce the risk of hypertension in your dog:

• Regular Exercise: Engage your dog in daily physical activities like walks, playtime, or agility exercises to maintain a healthy weight and cardiovascular system.
• Routine Vet Visits: Schedule regular check-ups to monitor your dog’s blood pressure and overall health, especially if they are senior or have underlying health conditions.
• Stress Reduction: Minimize stressors in your dog’s environment. Provide a calm and secure space, and avoid sudden changes in routine.

By incorporating these practices into your dog’s daily life, you can help maintain their blood pressure within a healthy range and improve their quality of life.

References

• Systemic Hypertension in Dogs – VCA Animal Hospitals
• Nutrition for Dogs with Heart Disease – VCA Animal Hospitals
• Management of Systemic Hypertension in Dogs and Cats – DVM360

Disclaimer

This article is for informational purposes only and does not substitute professional veterinary advice. Always consult with your veterinarian for diagnosis and treatment options tailored to your dog’s specific needs.