TL;DR: Sudden loud snoring in cats requires a veterinary exam within 24 to 48 hours to identify potential issues like infections or polyps, but it is a life-threatening emergency if accompanied by gasping or blue gums.
What causes my cat to suddenly start snoring?
While some cats have always been noisy sleepers, the sudden onset of loud snoring is often a sign of increased airway resistance. This can be caused by various factors including upper respiratory infections, nasal polyps, environmental allergies, or even a foreign object stuck in the nasal passage. Because cats are masters at hiding discomfort, a change in their breathing sounds is a significant clinical sign that should not be ignored.
Is sudden snoring in cats a medical emergency?
- The urgency level for new loud snoring is typically Medium.
- Schedule a veterinary appointment within the next 24 to 48 hours to identify the underlying cause before the condition progresses.
- If the snoring is accompanied by gasping, open-mouth breathing, or a blue tint to the gums, this is a respiratory emergency; go to a clinic immediately.
How can photos and videos of my cat's snoring help the veterinarian?
- Record a clear video with sound to allow the doctor to hear the specific type of respiratory noise.
- Use video to document the physical effort your cat is using to breathe while in their home environment.
- Take close-up photos of the nose and face to help identify subtle swelling or discharge that may point toward a diagnosis.
Clinical Context (Merck Veterinary Manual)
Sudden loud snoring (stertor) in cats is most commonly associated with pharyngeal disease. Causes of large airway pathology include foreign bodies, edema, laryngeal paralysis or paresis, tracheal collapse, and elongated soft palate. When nasal passages are narrowed from inflamed mucosa, glandular elements, and secretions, respiratory stertor and open-mouth breathing may occur. An acute unilateral nasal discharge, possibly accompanied by pawing at the face, suggests a foreign body. It is important to seek veterinary attention if the cat exhibits respiratory distress (inspiratory dyspnea) alongside the stertor.
Chapter: Cardiology, Emergency, Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 118)