Is My Dog Sick? 7 Warning Signs You Shouldn't Ignore

Dogs can't tell us when something's wrong, so they rely on us to notice. Most changes are minor — but a few are red flags. Here are seven signs worth paying attention to, and what each usually means.

1. Not eating

Skipping one meal is common. Refusing food for more than a day, or alongside other symptoms, deserves a vet check.

2. Repeated vomiting

One vomit in a playful dog is often fine. Repeated vomiting, blood, or a bloated belly is urgent.

3. Lethargy

A normally bouncy dog that won't get up, or seems weak, should be assessed — especially with pale gums.

4. Trouble breathing

Labored breathing, or blue/pale gums, is always an emergency. Don't wait.

5. Straining or no urine

Difficulty urinating can signal a blockage or infection — see a vet promptly.

6. Sudden limping

A dog that won't bear weight, or shows obvious pain, needs prompt care.

7. Collapse or seizures

Any collapse, fainting, or seizure is an emergency — go to a clinic immediately.

Not sure where your dog falls? Pocket Vet gives you an instant, calm triage so you know whether to monitor at home or head to the vet.