Laryngitis in Cats
Laryngitis is an inflammation of the mucous membranes of the larynx. Signs of laryngitis include hoarseness and loss of voice. The most common causes are excessive meowing and a chronic cough. Both cause vocal cord strain.
Laryngitis can be associated with tonsillitis, throat infections, tracheobronchitis, pneumonia, inhalant allergies, and (rarely) tumors in the throat. The lining of the larynx is not coated with cilia. Therefore, mucus frequently accumulates in the larynx. Exaggerated throat clearing is needed to dislodge it. This further irritates the larynx and lowers resistance to infection.
Asthma in Cats (Feline Allergic Bronchitis)
Asthma is a hypersensitivity to environmental allergens. This acute respiratory disease in cats resembles bronchial asthma in humans. Feline asthma affects approximately 1 percent of all cats. Siamese may have a slightly increased risk. Some of these cats present as an acute emergency with severe respiratory distress; others have a chronic history of coughing and wheezing. Cats with a chronic cough may need to be distinguished from cats with a hairball problem. In some cats, there will...
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Treatment: Laryngitis due to excessive meowing usually responds to removing the cause of the cat’s anxiety or distress. If the problem is due to prolonged coughing, seek veterinary attention to investigate and eliminate the cause of the chronic cough.
WebMD Veterinary Reference from "Cat Owner's Home Veterinary Handbook"


