Is panting always bad in dogs?

No — dogs pant to cool down and during excitement. Resting panting without a clear trigger, especially in cool weather, needs a vet check. Know your dog's normal breathing pattern after walks and at bedtime.

Do old dogs pant more?

Senior dogs may pant from pain, cognitive changes, heart or lung disease, or obesity. New panting in an older dog should be assessed — do not assume it is simply ageing.

Can anxiety cause panting in dogs?

Yes — thunderstorms, fireworks, separation, and vet visits commonly trigger stress panting with wide eyes and pacing. Rule out medical causes first if panting is new or worsening.

When is heavy panting an emergency?

Collapse, blue or pale gums, extreme distress, known heat exposure, or panting with a swollen hard abdomen and retching — go to emergency vet care immediately.

Dog Health

Why Is My Dog Panting Heavily?

Quick answer

**Dogs pant to cool down — heavy panting after exercise or on warm days is usually normal.** **Panting at rest in cool weather, with pale or blue gums, coughing, collapse, or after a hot car** needs urgent vet care. Common causes include heatstroke, pain, heart disease, fever, anxiety, and obesity. Flat-faced breeds overheat faster.

Key takeaways

No — dogs pant to cool down and during excitement. Resting panting without a clear trigger, especially in cool weather, needs a vet check. Know your dog's normal breathing pattern after walks and at bedtime.
Senior dogs may pant from pain, cognitive changes, heart or lung disease, or obesity. New panting in an older dog should be assessed — do not assume it is simply ageing.
Yes — thunderstorms, fireworks, separation, and vet visits commonly trigger stress panting with wide eyes and pacing. Rule out medical causes first if panting is new or worsening.

The full picture

Causes, home monitoring, treatment options and the exact signs that mean call your vet — in the complete guide.

Read the full guide Check symptoms

Frequently Asked Questions

Is panting always bad in dogs?: No — dogs pant to cool down and during excitement. Resting panting without a clear trigger, especially in cool weather, needs a vet check. Know your dog's normal breathing pattern after walks and at bedtime.
Do old dogs pant more?: Senior dogs may pant from pain, cognitive changes, heart or lung disease, or obesity. New panting in an older dog should be assessed — do not assume it is simply ageing.
Can anxiety cause panting in dogs?: Yes — thunderstorms, fireworks, separation, and vet visits commonly trigger stress panting with wide eyes and pacing. Rule out medical causes first if panting is new or worsening.
When is heavy panting an emergency?: Collapse, blue or pale gums, extreme distress, known heat exposure, or panting with a swollen hard abdomen and retching — go to emergency vet care immediately.

Reviewed 2026-06-25 against UK veterinary guidance · Information only — not a substitute for seeing your vet.