A cat’s respiratory rate is a key indicator of its overall health. We’ll explain how to recognize normal ranges and quickly spot any warning signs.




| Item | Respiratory Rate | Response Method | Whether to Visit the Hospital |
|---|---|---|---|
| Normal | 20–40 breaths per minute | Maintain daily observation | Not needed |
| Caution | When it exceeds 40 breaths per minute even at rest, or breathing differs from usual | Continuous observation, remove stress factors | Recommended |
| Emergency | When panting with an open mouth, or when the gums/tongue are bluish | Visit the hospital immediately | Essential |
A persistent increase in respiratory rate or a change in breathing pattern may have causes such as lung disease, heart problems, pain, or stress. A veterinary consultation is needed for an accurate diagnosis.
Signs requiring immediate veterinary visit
If your cat is panting with its mouth open, and its lips or the inside of its mouth appear blue or bluish, this indicates a critical emergency due to insufficient oxygen supply. Immediate veterinary care is essential. This could be a sign of serious conditions such as pulmonary edema, heart failure, or airway obstruction. Given the severe respiratory distress involved, prompt emergency treatment is crucial.



A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] Advanced Monitoring for Small Animal Emergency and Critical Care, 2nd Ed. (2017). Elsevier.
[2] Plumb's Veterinary Drug Handbook, 9th Ed. (2021). Wiley-Blackwell.
[3] BSAVA Manual of Canine and Feline Emergency and Critical Care, 2nd Ed. (2017). British Small Animal Veterinary Association.