Animal Trust

Symptom: Panting – Why is my pet panting?

Signs my pet is panting

  • Rapid shallow breath 

  • Open mouth 

  • Abnormal or excessive panting (may indicate a problem): 

  • Panting at rest 

  • Loud or laboured breathing 

  • Panting with other symptoms such as lethargy, coughing, pale or blue gums 

  • Changes in behaviour 

Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published October 2025 | Review date October 2028 | This advice is for UK pets only and is not a replacement for seeing a vet

Symptom: Panting – Why is my pet panting?

Frequently asked questions

What are the common reasons for my pet to be panting?

- Cooling down, excitement, exercises, stress (normal panting) 

- Heatstroke, pain, breathing issues, heart problems, obesity (abnormal or excessive panting) 
Related reading: Protecting your cat from heatstroke

- Medication side effects 

- Breed predisposition (short-nosed breed) 

DOs - My pet is panting, what to do at home:

- Do provide water 

- Do move to a cooler area 

- Do calm your pet and comfort them 

- Do observe and monitor 

DON'Ts - My pet is panting, what not to do at home:

- Don't overexert your pet 

- Don't give large amounts of water at once 

- Don't leave your pet in a hot car or in areas that heat up quickly 

- Don't ignore excessive panting 

- Don't punish your pet for panting due to anxiety

When should I think about going to the vet if my pet is panting?

- Sudden onset and persistent panting 

- Difficulty breathing 

- Changes in gum colour 

- Signs of heatstroke

- Panting with other symptoms 
 

Concerned about your pet?