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Wellness, routine, or general care is for pets needing vaccines, preventive care, or ongoing monitoring who can safely wait at least 24 hours.
Urgent and ongoing care in Stittsville, Kanata & West Ottawa. Unwell today? Call 343-463-8787, option 1 during clinic hours or check wait times. Stable bookings: option 2. One-off urgent visits welcome.
Leptospirosis in Dogs — Signs, Assessment and Next Steps
Prompt assessment is needed for suspected leptospirosis or unexplained illness with urinary changes.
Definition
Leptospirosis is a bacterial infection that can affect dogs and people. Exposure can occur through infected urine or contaminated environments. In dogs it may affect the kidneys, liver, or other organs, and clinical signs vary.
Who This Page Is For
For owners of a dog with the changes described below, or with a suspected or confirmed diagnosis who want to understand assessment and follow-up.
Who This Page Is Not For
This page cannot confirm a diagnosis or replace an examination. If severe signs are present, use the emergency guidance below rather than waiting for an online answer.
Related Urgent Symptoms
What This Can Look Like at Home
Reduced appetite, vomiting, fever, or lethargy
Changes in drinking or urination
Yellow colouring of the eyes or gums, pain, or breathing changes in more serious illness
Why This Can Be Hard to Judge
Outdoor exposure may be relevant, but a dog does not need to live on a farm to be at risk. Diagnosis considers the exposure history, illness pattern, vaccination, and the timing and limitations of available tests.
The Improvement Trap
Briefly improved energy does not confirm normal kidney or liver function. A suspected or diagnosed case needs the recommended treatment, monitoring, and infection-control instructions.
What Is Easy to Miss at Home
Exposure to rodents or contaminated water in ordinary neighbourhoods
Reduced urine output rather than simply more thirst
Urine handling that could expose people or other animals
When This Can Be an Emergency
Prompt assessment is needed for suspected leptospirosis or unexplained illness with urinary changes. Collapse, difficulty breathing, severe weakness, or little or no urine needs immediate emergency care. Tell the clinic about the concern before arrival where practical.
Call 343-463-8787, option 1 for urgent or emergency concerns. For stable follow-up or non-urgent questions, call option 2. If immediate care is needed and SKVH cannot be reached or is closed, go to an emergency veterinary hospital; do not wait for a callback or text response.
How Veterinarians Assess This
The veterinarian starts with your pet’s history and examination. Tests are chosen to answer specific questions; not every pet needs every test listed. Findings, options, and estimates are explained before you decide.
Examination and blood and urine testing to assess organ effects
Leptospira-specific testing chosen for the stage of illness
Repeat or paired testing when needed to interpret an initial result
Veterinary Differentials - Serious / Must-Rule-Out First
Acute kidney injury
Significant liver disease or bleeding complications
Severe respiratory involvement or systemic illness
These are possibilities considered from the examination, not a prediction that your pet has one of them.
Veterinary Differentials - Common / More Typical
Leptospirosis
Another infectious illness
Other causes of kidney or liver abnormalities
The list explains overlapping possibilities; it is not a ranking of the diagnosis for an individual pet.
Safety, Psychology, & Peace of Mind
Treatment may include antibiotics, hydration support, and monitoring or hospitalization according to severity. Use gloves and follow veterinary cleaning instructions when handling urine from a suspected case. People with exposure or illness concerns should contact their healthcare professional. Prevention discussions can include vaccination and environmental risks.
For Stittsville, Kanata, and West Ottawa pet owners, SKVH welcomes new clients and one-off urgent visits during clinic hours. Call first so the team can discuss symptoms, appointment options, and the right next step.
Learn about diagnostic services and urgent care during clinic hours. The team will explain when referral or a different care setting is appropriate.
Further reading: Veterinary reference information. This page is general education, not an individual diagnosis or prescription.
Illustrative dog photograph; not a patient image or depiction of this diagnosis. Photo: Johan Spaedtke, Wikimedia Commons, CC0 public-domain dedication.
Frequently Asked Questions
Can a city dog be exposed?
Yes. Rodents, wildlife, and contaminated environments can be relevant in urban or suburban settings as well as rural areas.
Can people catch leptospirosis?
Yes. Follow the veterinary team’s precautions around urine and cleaning. Contact a healthcare professional about human exposure or symptoms.
Does vaccination rule it out completely?
No vaccine eliminates every possible risk. Vaccination history still helps assess likelihood and interpret the clinical picture.
Does one test always provide the answer?
Not necessarily. Test choice, timing, prior antibiotics, and vaccination can affect interpretation, and additional testing may be recommended.
What if my dog produces very little urine?
Seek urgent veterinary care, especially with vomiting or weakness. This can indicate serious kidney or urinary disease rather than a routine monitoring issue.