Why Is My Cat Sneezing? Upper Respiratory Infections and Other Causes

An occasional sneeze can happen when dust or another irritant enters a cat’s nose. Repeated sneezing with eye discharge, nasal discharge, decreased appetite, or low energy can point to an upper respiratory problem.

Common causes Viral infections are common causes of feline upper respiratory disease. Secondary bacterial infection can complicate some cases. Dental disease, nasal foreign material, polyps, fungal disease, and other nasal disorders are also possible. Cats from shelters, rescues, boarding settings, or multi-cat homes may have greater exposure to contagious respiratory pathogens.

What does discharge tell you? Clear discharge may occur early in disease or with irritation. Thick, colored, bloody, or one-sided discharge can justify a closer evaluation. Color alone does not determine whether antibiotics are needed.

Why can respiratory illness affect appetite? Cats rely strongly on smell. A congested nose can make food less appealing even when the cat is otherwise interested in eating. This becomes important because cats should not go for prolonged periods with inadequate food intake.

Veterinary evaluation and treatment The veterinarian will assess the nose, eyes, mouth, teeth, temperature, hydration, and breathing. Mild uncomplicated infections may need supportive care, while severe, persistent, or unusual cases may require testing and targeted treatment. If bacterial involvement, dental disease, fungal disease, or another specific problem is identified, treatment is directed at that cause.

Emergency signs Open-mouth breathing, blue or gray gums, severe respiratory effort, collapse, or extreme weakness require emergency care.