Learn about asthma in cats

Asthma is usually caused by an allergy to something in your cat’s home (eg, pollen, dust), causing the airways to become inflamed and, over time, narrowed. With asthma, the airways can also react strongly and suddenly to irritants, causing sudden narrowing and breathing difficulties.  

Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published August 2025 | Review date August 2027 | This advice is for UK pets only and is not a replacement for seeing a vet