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Is it Normal for Cats to Snore?

Some cats do snore. Usually it's not a problem, but it can be a sign of illness.

 |  Jul 18th 2012  |   2 Contributions


Catster recently received an excellent query from India through Facebook:

Hi, I wanted to know if cats snore. And if they do, is there something seriously wrong with them?

Some cats snore. For many, nothing is wrong. However, snoring can be a sign of trouble.

Sleeping cat by Shutterstock.com.

Snoring occurs when the passages in the "upper airways" -- the nose, back of the mouth (the so-called pharynx), or throat -- vibrate audibly during breathing. Vibrations and the resulting snoring are most likely to occur when the tissues of the upper airways are relaxed during sleep.

Persians and other short-nosed individuals are the most likely snorers in the feline world. As humans have bred them to have shorter noses, the tissues in the upper airways have become unnaturally tortuous. When air moves through the convoluted tissues, vibration and snoring are common. In extreme cases, audible breathing noises might even occur while awake. Although snoring while awake is essentially standard in bulldogs, it's not as common in cats -- and that's a good thing, because snoring while awake sometimes can be linked to breathing difficulties.

In some instances, snoring can be a sign of a health problem. The most basic and common health issue that leads to snoring is being overweight or obese. Excess body weight leads to fat accumulation in the tissues surrounding the upper airways, which in turn can trigger snoring. This phenomenon is quite common in people as well as cats and dogs.

Cats with upper respiratory infections might develop snoring. The audible breathing occurs due to sinus congestion or mucus buildup in the airways. Viral and bacterial infections are most common, and these usually are self-limiting or curable with medication. However, fungal infections also are possible, and these have the potential to be more serious.

Foreign objects (such as grass blades) in the back of the mouth or nose might trigger snoring as well as coughing, agitation, and sinus infections.

Kitten sleeps on back by Shutterstock.com.

More perniciously, masses or tumors in the sinuses or upper airways might cause snoring. Cancers such as lymphoma, fibrosarcoma, and adenocarcinoma can be culprits. Benign polyps also occur.

There are some simple guidelines for determining whether a snoring cat has a medical problem. Light snoring that occurs during sleep, is not linked to respiratory distress, and that is stable in nature (meaning it doesn't become more pronounced over time) probably isn't a problem. Snoring that becomes progressively louder or is linked to other symptoms such as sneezing, coughing, or changes in appetite is probably as sign of illness. Snoring that occurs in combination with respiratory distress is a medical emergency -- respiratory distress is always a medical emergency.

Cat asleep on her back by Shutterstock.com.
When in doubt, the best option is to have your cat checked by a vet. A course of antibiotics might help speed recovery from a upper respiratory infection. Anesthetic evaluation of the back of the throat might reveal a grass blade that can be removed.

In some cases, snoring that even seems to define a cat's character can and should be eliminated. Many years ago I had a patient named Wheezer. She was a sweet cat who earned her name through her snoring. When she was anesthetized for dental work, I evaluated the back of her throat and found a large benign polyp. After the polyp was removed, she stopped snoring. Despite this development, the owners opted not to change her name.

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