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Question:

Real Giardia risk for adult dogs?

I’m beside myself right now and could really use some advice. My normally healthy and energetic 5-year-old Labrador, Max, has been having these bouts of diarrhea over the past week, and I’m super worried. We recently went on a camping trip where he had access to some streams, and now, I’m freaking out because I’ve been reading up on giardia and all signs seem to be pointing that way. I haven’t seen any vomiting, which is a relief, but I’m still not sure how serious this can get if it’s left unchecked. He’s always been up to date with his vet visits and shots, but I never really thought about giardia as a real possibility until now. Should I rush him to the vet immediately or just monitor him for another day or two? Has anyone else experienced this with their adult dogs? I’d be grateful for any advice or reassurance you can offer.

Answer:

Thank you for your question about Giardia in adult dogs. Giardia is a microscopic parasite that can infect the intestines of dogs, causing giardiasis. While it's more common in puppies due to their developing immune systems, adult dogs are also at risk, especially if they have weakened immunity or are exposed to contaminated water or feces.



In adult dogs, symptoms might include diarrhea, vomiting, and weight loss. Some dogs may not show any symptoms at all and can become carriers, potentially spreading the parasite to other animals or humans.



At home, ensure your dog has access to clean, fresh water and maintain hygiene by promptly cleaning up feces in the yard. If your dog shows mild symptoms, offering a bland diet like boiled chicken and rice for a couple of days might help settle their tummy. However, if your dog exhibits persistent diarrhea, dehydration, or lethargy, it's important to seek professional advice.



Look out for blood in the stool, severe weight loss, or general unwellness, as these could indicate a more serious issue needing prompt veterinary attention.



For personalized advice and to discuss if testing or treatment is needed, please consider booking a video consultation with one of our veterinarians on Dial A Vet. We’re here to help ensure your dog stays healthy and happy!

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 26, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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