In Wisconsin, ticks are more than just a seasonal nuisance—they’re a serious threat to your dog’s long-term health. One of the most concerning tick-borne illnesses is Lyme disease, caused by the bacterium Borrelia burgdorferi and spread through the bite of an infected black-legged tick, commonly called a deer tick.
At Greenfield Veterinary Clinic, we understand how stressful tick season can be for pet owners. That’s why we’re here to help you recognize the signs, understand the risks, and take action to protect your dog through proven prevention and early treatment.
Need help keeping ticks away this season? Schedule an appointment today.
What Is Lyme Disease—and How Do Dogs Get It?
Lyme disease occurs when a tick infected with Borrelia burgdorferi attaches to your dog and transmits the bacteria through its bite. These ticks must remain attached for 24 to 48 hours to successfully transmit the infection, which means prompt removal is key—but prevention is even better.
Ticks thrive in wooded, brushy, and grassy areas, especially in the spring, summer, and fall. In Wisconsin, deer ticks are most active from April through November, but mild winters may extend that window. Just one walk through tall grass or a backyard play session can put your dog at risk.
For a detailed look at tick prevention, check out the CDC’s guide on preventing ticks on pets.
Recognizing the Signs: Symptoms of Lyme Disease in Dogs
Lyme disease symptoms can be subtle at first—but early intervention is critical. Some dogs may not show signs for weeks or even months after a tick bite, which is why monitoring for any changes in behavior or mobility is important.
Common symptoms include:
- Low-grade or persistent fever
- Lameness that may shift from one leg to another
- Joint swelling and stiffness
- Loss of appetite
- Lethargy or general fatigue
- Swollen lymph nodes
- In severe cases: kidney complications (Lyme nephritis), which can lead to increased thirst, frequent urination, vomiting, and weight loss
Some dogs may also develop chronic joint pain or, less commonly, neurologic symptoms. If you notice any of these signs, especially after known tick exposure, call us right away.
How Lyme Disease Is Diagnosed in Dogs
Physical Exam and History
Your veterinarian will begin with a thorough physical exam, checking for joint pain, fever, or swelling. We’ll also discuss your dog’s environment and whether they’ve recently been in areas where ticks are prevalent.
Blood Tests
We typically use one of several in-clinic screening tests that detect antibodies to Borrelia burgdorferi. These tests are fast and reliable, but a positive result only indicates exposure, not necessarily active disease.
To confirm an active infection, we may recommend:
- Quantitative C6 antibody test – measures the level of antibodies to determine if treatment is needed.
- Additional diagnostics if symptoms point to kidney involvement, such as urinalysis, blood chemistry, and urine protein-to-creatinine ratio.
For more detailed information, visit the Cornell Veterinary Diagnostic Center’s Lyme disease page.
Can Lyme Disease Be Treated? Yes—With Prompt Veterinary Care
Antibiotic Therapy
The primary treatment for Lyme disease in dogs is a 4–6 week course of antibiotics, most commonly doxycycline. In many cases, dogs begin to feel better within just a few days, but finishing the full course is crucial to ensure the infection is fully eliminated.
Managing Pain and Inflammation
To relieve joint discomfort, we may prescribe NSAIDs (non-steroidal anti-inflammatory drugs). In some cases, additional medications or joint supplements may be recommended to support long-term comfort and mobility.
Kidney Support
If your dog develops Lyme nephritis—a rare but serious complication—we may initiate more aggressive therapies, including:
- IV fluids
- Electrolyte support
- Kidney-protective medications
- Nutritional management
These cases often require hospitalization and long-term monitoring.
Follow-Up Care
After treatment, we recommend regular rechecks to ensure your dog is recovering well. This may include repeated bloodwork or urine tests, especially if kidney involvement was suspected.
Prevention: The Best Defense Against Lyme Disease
Preventing Lyme disease is far easier—and more effective—than treating it after the fact. In an area like Wisconsin, year-round tick prevention is a must, even in cooler months when ticks can still be active.
Tick Prevention Options
We offer several highly effective flea and tick preventatives:
- Topical treatments (e.g., Frontline, K9 Advantix)
- Oral medications (e.g., NexGard, Simparica Trio, Bravecto)
- Tick-repellent collars, such as Seresto
We can help you choose the right product based on your dog’s lifestyle, health history, and environment.
Lyme Disease Vaccination
A Lyme vaccine is available and can offer an added layer of protection—especially for dogs who spend a lot of time outdoors or in heavily wooded areas. While the vaccine does not prevent all cases of Lyme disease, it can significantly reduce the severity of infection if your dog is exposed.
We often recommend a combination of vaccination and year-round tick prevention for at-risk dogs. Talk to your veterinarian to determine whether the Lyme vaccine is appropriate for your pet.
Environmental Management
- Inspect your dog daily, especially after outdoor play, focusing on ears, neck, belly, and between toes.
- Mow your yard regularly and remove leaf litter to reduce tick habitat.
- Use tick repellents when hiking or walking in wooded areas.
When to Seek Emergency Care
Lyme disease typically progresses slowly, but some cases—especially those involving the kidneys—can become critical. Seek immediate veterinary care if your dog experiences:
- Sudden lameness or inability to walk
- Vomiting, diarrhea, or refusal to eat
- Increased thirst and urination
- Weight loss or signs of dehydration
- Weakness, lethargy, or collapse
Greenfield Veterinary Clinic offers emergency care for dogs in distress. If your pet shows any of these symptoms, please contact us right away.
Lyme Disease Is Serious—but It’s Preventable
Lyme disease doesn’t have to be part of your dog’s story. With consistent flea and tick prevention, regular wellness exams, and prompt attention to symptoms, you can keep your dog safe and comfortable through every season.
At Greenfield Veterinary Clinic, we’re proud to be your partners in prevention. Whether it’s helping you choose the best tick preventive, answering questions about Lyme vaccines, or treating a dog already showing symptoms, we’re here to provide compassionate, expert care every step of the way.
Concerned about ticks or Lyme disease? Schedule an appointment with us today.
Leave A Comment