Although ear infection of the outer ear (otitis externa) is very common in cats, the disease can also spread deeper down the ear canal if not treated quickly enough.  Otitis externa is has a range of causes and treatments, but will normally have no more serious an affect than discomfort and trauma to the ear from scratching.

Inflammation of the middle ear (otitis media) however, can actually require surgery to put right – although treatment normally involve antibiotics or antifungals.  Symptoms include shaking or tilting or the head as well as a loss of balance in some cases.  Should the infection reach the inner ear (otitis interna), then your cat is in real trouble as these infections can result in permanent damage or even death!  The signs of otitis interna are un-missable and include vomiting, hearing loss and loss of coordination.  For this reason it is imperative that ear diseases are diagnosed and treated as soon as possible, as many cats are put down when the treatment is too expensive for owners without pet insurance.