Cat Feline Asthma: Chronic Airway Disease and Quality of Life

Feline asthma is a common chronic inflammatory airway disease in cats, causing distressing breathing difficulties that can be effectively managed with appropriate treatment.

Key Facts

Feline asthma (allergic bronchitis) affects an estimated 1-5% of all cats, making it one of the most prevalent respiratory conditions in the species
It is caused by hypersensitivity to inhaled allergens triggering bronchospasm and mucus production
Acute asthma attacks cause severe respiratory distress — cats crouch low to the ground, neck extended, breathing with open mouths
Common triggers include cigarette smoke, dusty cat litters, aerosol sprays, perfumes, and mould
Treatment involves corticosteroids (to reduce inflammation) and bronchodilators (to open airways) — now commonly delivered by inhaler using a feline spacer device
Stress can trigger or worsen asthma episodes; minimising environmental stressors is an important component of management

Welfare Considerations

Feline asthma attacks cause genuine and severe respiratory distress — the sensation of being unable to breathe is acutely frightening. Chronic low-grade inflammation between attacks also causes persistent mild breathlessness and reduced exercise tolerance. Many cats have significant welfare impairment from asthma before diagnosis because owners attribute breathing changes to ageing or hairballs. Once identified, treatment with inhaled corticosteroids (using a spacer device like AeroKat) is highly effective and causes fewer systemic side effects than oral medication. Environmental modification — removing smoke, switching to low-dust litters, avoiding aerosols — reduces trigger exposure and can significantly reduce attack frequency. Well-managed asthmatic cats can have excellent quality of life.

What You Can Do

Seek veterinary diagnosis if your cat develops coughing, wheezing, or breathing with open mouth — do not assume it is hairballs
Train your cat to accept an inhaler spacer device for corticosteroid and bronchodilator administration
Switch to low-dust, unscented cat litter and avoid aerosol sprays, air fresheners, and cigarette smoke in your home
Keep an emergency bronchodilator inhaler available for acute attacks and know when to seek emergency veterinary care
Monitor your cat's breathing rate at rest as a welfare indicator — respiratory rates above 30 breaths per minute may indicate worsening disease