Is Your Dog at Risk? Symptoms of High Blood Pressure in Dogs

Published on March 17 by Julia

High blood pressure, or hypertension, is a condition that affects not only humans but also our canine companions. It often goes undetected until severe complications arise, making awareness of its signs and symptoms crucial for early detection and treatment. Here’s what you need to know about hypertension in dogs and how to recognize its warning signs.

Understanding Canine Hypertension

Canine hypertension occurs when a dog’s blood pressure is persistently elevated beyond the normal range. This condition can be primary (without an underlying cause) or secondary (resulting from another health issue such as kidney disease, diabetes, or Cushing’s disease).

Common Symptoms of High Blood Pressure in Dogs

Since hypertension can develop gradually, its symptoms may not be immediately noticeable. However, here are the most common warning signs:

1. Sudden Blindness or Vision Problems – High blood pressure can cause damage to the blood vessels in the eyes, leading to sudden blindness, dilated pupils, or retinal detachment.
2. Nosebleeds – Spontaneous nosebleeds without injury can be a sign of increased pressure in the blood vessels.
3. Seizures or Disorientation – Hypertension affects the brain, causing seizures, confusion, circling, or difficulty walking.
4. Lethargy and Weakness – Dogs with high blood pressure may appear tired, reluctant to exercise, or unusually weak.
5. Increased Thirst and Urination – Secondary hypertension related to kidney disease often leads to excessive drinking and urination.
6. Heart Murmurs or Irregular Heartbeats – Hypertension can affect the heart, causing murmurs, arrhythmias, or even heart failure.
7. Behavioral Changes – Increased anxiety, restlessness, or sudden aggression could be linked to underlying hypertension.
8. Weight Loss or Loss of Appetite – If your dog suddenly loses interest in food or experiences unexplained weight loss, high blood pressure may be a contributing factor.

Diagnosis and Treatment

If you notice any of these symptoms, it’s essential to consult a veterinarian. Diagnosing hypertension in dogs involves measuring blood pressure with specialized equipment, similar to how it's done in humans. Your vet may also conduct blood tests, urinalysis, and imaging studies to identify underlying causes.

Managing High Blood Pressure in Dogs

Treatment depends on whether the hypertension is primary or secondary. Management options may include:

• Medications – Drugs like amlodipine or enalapril can help regulate blood pressure.
• Dietary Changes – A low-sodium diet and weight management can improve symptoms.
• Treatment of Underlying Conditions – Addressing kidney disease, diabetes, or other contributing factors is essential.
• Regular Monitoring – Routine blood pressure checks help ensure that treatment is effective.

High blood pressure in dogs is a serious condition that can lead to life-threatening complications if left untreated. By staying vigilant and recognizing early symptoms, you can help protect your furry friend’s health and well-being. Regular veterinary check-ups, a balanced diet, and an active lifestyle are key factors in preventing hypertension in dogs.

If you suspect your dog may have high blood pressure, don’t wait—consult your veterinarian as soon as possible for a proper diagnosis and treatment plan.

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