The following is a brief but not exhaustive list of some of the causes of cat cough.
Feline asthma is a common allergic respiratory disease in cats and the more severe form can be accompanied by wheezing. It is a chronic progressive disease for which there is no cure, but the symptoms can be well managed (as with people with asthma).
Irritation of the airways mainly occurs due to inhaled liquids, irritant gases or foreign bodies.
Inflammation of the airways is a common outcome following irritation. It is also seen associated with viral (cat flu), bacterial, fungal and parasitic (lungworm) infections.
Tumours can develop in the upper respiratory tract (mouth and/or throat) or lower respiratory tract (lungs). Clinical signs will depend on where the mass is located and whether it is an isolated mass or diffusely spread throughout the lungs.
Nasopharyngeal polyps are benign growths that grow in the area at the back of the throat. They can block the nose and cause the cat to cough or reluctantly breathe through their mouth.