Lyme Disease in Dogs: Signs, Testing, and Prevention

Lyme disease is one of the most well-known tick-borne illnesses in the U.S., affecting both people and pets. Dogs are especially at risk because of their outdoor exposure, particularly in wooded, grassy, or tick-prone areas. Knowing how Lyme disease spreads, what to watch for, and how to prevent it can help you protect your dog year-round.

How Dogs Get Lyme Disease

Lyme disease is caused by the bacterium Borrelia burgdorferi, transmitted through the bite of infected black-legged ticks (deer ticks). A tick must remain attached for 24–48 hours to transmit the bacteria, which is why daily tick checks and early removal are key to prevention.

Signs of Lyme Disease in Dogs

Not every infected dog shows symptoms, but when they do, the signs can include:

• Fever
• Lethargy or decreased appetite
• Lameness that shifts from one leg to another
• Joint pain or swelling
• Stiffness or reluctance to move
• Enlarged lymph nodes

In rare, severe cases, Lyme disease can affect the kidneys (Lyme nephritis), leading to vomiting, weight loss, and increased thirst/urination.

How We Test for Lyme Disease

At Partners Animal Hospital – Fruitville, we can detect Lyme exposure using a simple in-clinic blood test that screens for tick-borne illnesses. If your dog tests positive, we’ll follow up with additional diagnostics to confirm infection and assess organ function.

Preventing Lyme Disease

• Use year-round tick prevention. Topical, oral, or collar-based products are highly effective when used consistently.
• Get the Lyme vaccine if recommended for your region and lifestyle.
• Perform daily tick checks, especially after outdoor activity.
• Keep grass trimmed and avoid dense brush where ticks thrive.

Bottom Line:
Lyme disease is preventable. Consistent tick control, regular testing, and awareness of early signs can keep your dog safe and healthy. If you have questions about Lyme disease prevention or vaccines, Call us or book an appointment today!