AI overview
Cat bad breath is most commonly caused by dental issues, such as periodontal disease or feline tooth resorption, a painful condition where tooth structure erodes near the gum line. Distinct smells may also indicate underlying medical conditions: sweet or acetone-like breath can point to diabetes, while an ammonia-like odor may suggest kidney disease.
If your cat's bad breath occurs alongside sudden drooling, open-mouth breathing, refusal to eat, lethargy, or collapse, contact a veterinarian immediately as these signs require urgent care. For mild, ongoing bad breath, a professional examination is the best way to identify the source of discomfort. Schedule a dental checkup with your vet to safely evaluate your cat's mouth.
Informational only - not a veterinary diagnosis. For urgent signs, contact a vet immediately.