Otitis externa, commonly known as an ear infection, is characterized by inflammation of the soft tissue components of the external ear canal. It can affect cats but is more common in dogs.
Several factors may predispose your cat to ear infections, including: Abnormal ear conformation or anatomy such as nasopharyngeal polyps (more common in young cats)
Water or hair in the ears
Tumors (common in elderly cats)
Foreign material in the ears
Generalized skin disease
Infections are caused by fungus, bacteria or parasites. Laboratory tests can help to determine which of these is the cause in your pet. Ear mites (Otodectes) may cause approximately 50% of infections in young cats. Other common cause in cats are nasopharyngeal polyps in young or middle age cats and neoplasia (cancer) of the ear in senior cats.
What to Watch For
Common signs of ear infections may include:
Scratching or rubbing the ears
An abnormal odor or discharge from the ear
Pain when you manipulate the ear