Can Dogs Get Lyme Disease? A Complete Guide for Pet Owners

Lyme disease is one of the most common — and most misunderstood — tick-borne illnesses affecting dogs. If your dog spends time outdoors, hikes with you, or even just plays in grassy areas, you may be wondering: Can dogs get Lyme disease?
The short answer is yes, and early detection is incredibly important.

In this complete guide, we’ll cover how dogs get Lyme disease, the symptoms to watch for, treatment options, and the best ways to protect your dog year-round.

What Is Lyme Disease in Dogs?

Lyme disease is caused by a spiral-shaped bacterium called Borrelia burgdorferi. Dogs usually get infected through the bite of an infected black-legged tick, often called a deer tick. These ticks are common in wooded, grassy, and humid areas — which means most outdoor environments pose at least some level of risk.

Once the bacteria enter your dog’s bloodstream, they can affect multiple organs, including the joints and kidneys.

How Do Dogs Get Lyme Disease?

Dogs become infected when an infected tick attaches and feeds for 36–48 hours or longer.
Ticks hide in grass, leaf piles, shrubs, and wooded trails, waiting to latch onto passing animals.

Even dogs that rarely leave their yard are at risk, especially if wildlife (like deer, raccoons, or squirrels) pass through your property.

High-risk environments include:

• Tall grass or brush
• Forest trails
• Parks and hiking paths
• Rural or suburban yards
• Areas with high deer populations

If your dog explores these places, tick prevention is essential.

Common Symptoms of Lyme Disease in Dogs

Signs of Lyme disease can be subtle at first, which is why it often goes unnoticed. Some dogs show no symptoms for months.

Here are the most common symptoms to look for:

Early Symptoms

• Limping that comes and goes (shifting leg lameness)
• Joint stiffness
• Reduced energy / fatigue
• Fever
• Loss of appetite

Advanced or Serious Symptoms

• Swollen joints
• Difficulty walking
• Kidney problems (Lyme nephritis)
• Vomiting
• Persistent lethargy
• Weight loss

If you notice any of these signs, contact your veterinarian — early treatment can make a major difference.

How Veterinarians Diagnose Lyme Disease

Your vet may use a combination of:

• A physical exam
• A blood test to detect Lyme antibodies
• Additional testing to look for kidney involvement
• A discussion of your dog’s lifestyle or recent tick exposure

Because symptoms overlap with other conditions, vet testing is the most reliable way to confirm infection.

Treatment Options for Dogs with Lyme Disease

The standard treatment for Lyme disease in dogs is a course of antibiotics, typically doxycycline. Most dogs improve within 24–48 hours after treatment begins.

Your vet may also recommend:

• Anti-inflammatory medications
• Pain relief
• Additional testing for kidney function
• Follow-up exams to monitor recovery

Prompt treatment can prevent long-term complications.

How to Prevent Lyme Disease in Dogs

Prevention is the most effective way to protect your dog.
Here’s what veterinarians recommend:

1. Use Tick Prevention Products

Ask your vet about monthly preventatives such as:

• Oral tick medications
• Topicals
• Tick collars

These help kill or repel ticks before they can infect your dog.

2. Do Daily Tick Checks

After outdoor activities, check areas like:

• Ears
• Neck
• Belly
• Cracks between toes
• Armpits
• Groin
• Ticks can be very small — nymphs can look like poppy seeds.

3. Keep Your Yard Maintained

• Mow grass regularly
• Remove leaf piles
• Create a barrier between your yard and wooded areas

4. Consider the Lyme Vaccine

Some dogs benefit from a Lyme vaccine, depending on where you live.
Talk to your vet about whether it’s right for your pet.

When to Call Your Veterinarian

Contact your vet if you notice any of the following:

• Sudden or recurring lameness
• Swollen joints
• Fever or lethargy
• Loss of appetite
• Any tick found attached for more than 24 hours

Early detection = faster recovery.

Final Thoughts: Can Dogs Get Lyme Disease?

Yes — dogs can get Lyme disease, and it’s more common than many owners realize. The good news? With the right prevention and prompt veterinary care, most dogs recover fully.

Protect your dog with year-round tick prevention, regular checks, and by staying informed about the risks in your area.