Pet Health

Leptospirosis In Dogs: Symptoms & Treatments

Discover the signs and treatments of leptospirosis in dogs. Learn how to recognize symptoms early and ensure your furry friend's health and happiness!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A dog displaying symptoms of leptospirosis, including lethargy and fever, in a veterinary clinic setting.

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Leptospirosis is a serious bacterial infection that can affect dogs of all ages and breeds. It’s natural to feel worried if you’ve heard about this disease, especially since it can also spread to humans. The good news? With early detection and proper care, most dogs can recover fully. Let’s dive into what you need to know about leptospirosis in dogs, including symptoms to watch for and available treatments.

⚠️ What to Watch For

Leptospirosis is caused by bacteria from the genus Leptospira, which can be found in water, soil, and the urine of infected animals. Dogs often contract it by drinking from contaminated puddles or streams, especially in warm, wet climates. The tricky part? Symptoms can vary widely, making it important to know what to look out for.

Common symptoms of leptospirosis in dogs include:

  • Fever
  • Lethargy or low energy
  • Loss of appetite
  • Vomiting or diarrhea
  • Increased thirst or urination
  • Jaundice (yellowing of the skin, gums, or eyes)
  • Muscle pain or stiffness

In severe cases, leptospirosis can lead to kidney or liver failure, which may present as swollen limbs, difficulty breathing, or dark-colored urine. If you notice any of these signs, it’s important to act quickly.

🔍 Possible Causes

Leptospirosis spreads through contact with contaminated water, soil, or infected urine. Dogs at higher risk include those who:

  • Drink from puddles, ponds, or streams
  • Live in areas with heavy rainfall or flooding
  • Come into contact with wildlife such as rodents
  • Have weakened immune systems

While any dog can contract leptospirosis, outdoor-loving dogs, hunting breeds, and dogs in rural or suburban areas are particularly vulnerable. Urban pets aren’t immune either—leptospirosis has been linked to rodent activity in cities.

✅ What You Can Do at Home

If you suspect your dog may have been exposed to leptospirosis, there are a few steps you can take immediately to help protect their health and prevent the spread of the bacteria:

  • Isolate your dog from other pets and family members to reduce transmission risk.
  • Keep your dog hydrated by providing clean, fresh water.
  • Avoid handling your dog’s urine or feces without gloves, and disinfect any areas they’ve soiled.

While these steps can help manage the situation temporarily, leptospirosis requires professional veterinary care. Early intervention is key to a successful outcome.

💡 When to Call a Vet

If your dog shows any symptoms of leptospirosis, contact your veterinarian immediately. A vet will perform diagnostic tests, such as blood work or urine analysis, to confirm the infection. In some cases, advanced imaging or specialized tests may be needed to assess organ function.

Treatment typically involves antibiotics, which are highly effective at eliminating the bacteria. Dogs with severe symptoms, such as kidney or liver damage, may need hospitalization for IV fluids, supportive care, or other treatments.

Prevention is also a critical part of managing leptospirosis. Vaccines are available to protect dogs from the most common strains of Leptospira bacteria. Speak with your vet to determine if vaccination is right for your dog, especially if they’re at higher risk due to lifestyle or location.

FAQs

Q: Can humans catch leptospirosis from dogs?
A: Yes, leptospirosis is a zoonotic disease, meaning it can spread between animals and humans. Always use gloves when handling an infected dog’s urine or feces, and wash your hands thoroughly after contact.

Q: Is leptospirosis fatal in dogs?
A: Without treatment, leptospirosis can be life-threatening, especially if it leads to kidney or liver failure. However, with prompt veterinary care, most dogs recover fully.

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References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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