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Signs & Symptoms in Dogs

Clear, helpful guidance to understand common changes you may notice in your dog.

Noticing something new with your dog?

Dogs can’t tell us when something feels wrong, so changes at home can be important clues.You may notice changes in how they act, eat, look, or walk. Here, you’ll find information about common dog symptoms to help you understand what you may be seeing and how your veterinarian can help.​

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Featured article

There's a lot to know about your dog's health. Here's an article we think deserves a closer look.

Why Is My Dog Losing Weight?

Dogs can lose weight for many reasons, and not all of them are obvious. We’ll walk through what weight loss can look like, the most common reasons behind it, and the signs worth bringing up with your vet.

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Black and white dog standing at top of stairs looking curious.

Trending articles

These are some of the most popular symptom‑related articles dog owners are reading right now.

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Dog Diarrhea 101

Dr. Jenna Dockweiler, DVM at IDEXX
May. 21, 2026

Dog diarrhea is common, but recurring or prolonged symptoms may signal an underlying issue. Learn the causes, red flags to watch for, safe at-home care, and when to call your veterinarian.

9 minute read 9 minute read
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Dogs resting at home while owner reads a book

Dog Digestive Issues 101

Dr. Laura Sullivan, MRCVS
May. 19, 2026

Vomiting, diarrhea, appetite changes, and more—learn the symptoms of digestive issues in dogs and when to seek veterinary care.

11 minute read 11 minute read
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a dog looks out from a car

Upset Stomach in Dogs 101

Dr. Jennifer Rowan-Hitchcock, DVM, cVMA
May. 8, 2026

This article help you determine if your dog has a simple upset stomach or should be seen by a veterinarian for testing after vomiting or having diarrhea.

7 minute read 7 minute read