A–Z topic · C
Cat snoring
Quick answer
**Soft snoring during sleep is often normal** in UK cats — especially relaxed or slightly overweight pets. **New loud snoring, snoring while awake, open-mouth breathing, or effortful breaths** need vet checks for [obesity](/health/cat-obesity-uk), upper respiratory disease, or asthma. Never ignore sudden breathing change.
Key takeaways
- Soft snoring during deep sleep is common in many cats — especially if head is tilted or airway partially relaxed. Loud snoring, snoring that is new, or snoring with breathing effort while awake needs vet assessment.
- Obesity narrowing the airway, brachycephalic (flat-faced) breeds, nasal congestion from cat flu, polyps, or asthma can cause loud snoring. Overweight cats are a common UK cause.
- See your vet if snoring is new, your cat gasps or breathes with an open mouth when awake, has blue/grey gums, reduced exercise tolerance, or nasal discharge with sneezing.
The full guide
Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.
Frequently Asked Questions
- Is it normal for cats to snore?
- Soft snoring during deep sleep is common in many cats — especially if head is tilted or airway partially relaxed. Loud snoring, snoring that is new, or snoring with breathing effort while awake needs vet assessment.
- Why does my cat snore loudly?
- Obesity narrowing the airway, brachycephalic (flat-faced) breeds, nasal congestion from cat flu, polyps, or asthma can cause loud snoring. Overweight cats are a common UK cause.
- When is cat snoring a problem?
- See your vet if snoring is new, your cat gasps or breathes with an open mouth when awake, has blue/grey gums, reduced exercise tolerance, or nasal discharge with sneezing.