DOGS AND CATS · OWNER EDUCATION
High Blood Pressure in Dogs and Cats
Persistent high blood pressure can damage the eyes, kidneys, brain and heart and often occurs alongside another disease.
THE SHORT VERSION
Understanding supports better veterinary conversations.
Persistent high blood pressure can damage the eyes, kidneys, brain and heart and often occurs alongside another disease. The same outward signs can occur with several diseases, so an examination and appropriately selected testing are important.
What is this condition?
Persistent high blood pressure can damage the eyes, kidneys, brain and heart and often occurs alongside another disease. The same outward signs can occur with several diseases, so an examination and appropriately selected testing are important.
Which animals can be affected?
Risk factors, examination findings and management can differ between species and individual patients.
Why can it happen?
- Kidney disease, endocrine disease or other systemic illness.
- Stress can temporarily raise readings, so careful repeated measurement matters.
What might an owner notice?
- Often no obvious signs at first.
- Sudden blindness, disorientation, seizures or worsening kidney-related signs.
How is the problem investigated?
- Multiple calm, technically consistent blood-pressure readings.
- Eye examination, bloodwork and urinalysis to look for organ effects and underlying disease.
What might treatment involve?
- Veterinarian-prescribed blood-pressure medication and treatment of the underlying problem.
- Repeat measurements and kidney monitoring to safely adjust care.
This is an overview, not a prescription or a recommendation for a specific individual animal.
What can owners do at home?
- Write down when the problem began and track appetite, drinking, waste, activity, breathing and medication use.
- Bring clear photos or short videos when they can be taken without stressing the animal.
- Follow the veterinary team's instructions for medication, feeding, isolation, environmental changes and rechecks.
Avoid actions that could make care less safe.
- Do not use human medication, leftover antibiotics or another animal's treatment without veterinary direction.
- Do not force food or water into an animal that cannot swallow normally, is struggling to breathe or may have an obstruction.
- Do not delay veterinary care when pain, breathing, appetite, urination, movement or responsiveness changes quickly.
What can the longer-term outlook involve?
The outlook depends on the underlying cause, severity, species and how quickly effective care begins.
Can risk be reduced?
- Provide species-appropriate nutrition, housing, sanitation and routine veterinary care.
- Learn the animal's normal behavior, appetite, body condition and waste pattern so meaningful changes are noticed early.
When should you arrange care?
- Contact a veterinarian promptly for often no obvious signs at first. or sudden blindness, disorientation, seizures or worsening kidney-related signs..
- Arrange reassessment if signs return, worsen or do not improve as expected.
Seek emergency veterinary care if you notice:
SEEK EMERGENCY VETERINARY CARE- Sudden blindness, seizure, collapse, severe disorientation or difficulty breathing.
Sources behind this guide
VeterinaryPartner — client education from the Veterinary Information NetworkPrimary veterinary or veterinary-university guidance ↗American Animal Hospital Association: pet health resourcesPrimary veterinary or veterinary-university guidance ↗Content last reviewed: September 17, 2026. Review status: veterinary-informed; independent veterinarian review not yet completed.