Home › Animalia › Animal health › Animal diseases › Otitis externa
Otitis externa
Otitis externa is an inflammation of the external ear canal, common in dogs and cats. It can affect one or both ears and become chronic if not managed. It is one of the leading reasons for ear-related veterinary visits.
What is it?
Otitis externa is an inflammation of the external ear canal, common in dogs and cats. It can affect one or both ears and become chronic if not managed. It is one of the leading reasons for ear-related veterinary visits.
Causes are varied: parasites (mites), bacterial or fungal infections, allergies, foreign bodies, or anatomical abnormalities of the ear canal. Often, several factors combine to trigger the inflammation.
Breeds with floppy or hairy ears, excessive moisture in the ear canal (frequent swimming), skin allergies, and insufficient or excessive ear cleaning increase the risk. Age and certain chronic skin conditions also play a role.
Commonly observed signs
These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.
Signs include frequent ear scratching, head shaking, redness and swelling of the ear canal, and an unpleasant odor or discharge. The animal may also show pain when the ear is touched and a head tilt.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Transmission
Otitis externa itself is not contagious, but some causative agents, such as ear mites, can spread between animals through close direct contact.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
If your pet shows signs of ear discomfort, it is important to consult a veterinarian promptly to identify the cause and prevent complications. Only a professional can recommend appropriate care after examination.
Prevention
Regular and appropriate ear cleaning, careful drying after bathing or swimming, and monitoring for early signs of irritation help prevent otitis. Regular veterinary check-ups are recommended for predisposed breeds.
References
Content reviewed by the TunisieVet editorial team · Updated 08 August 2026
AT A GLANCE
Need a veterinarian?
Find a practitioner near you on TunisieVet, with their specialities, hours and contact details.
Find a veterinarianThis information is provided for educational purposes only and is not a substitute for a veterinary consultation. If you have any concerns about your animal's health, consult a veterinarian.
To discover
Related diseases and linked Animalia content.
Canine parvovirus
Viral · Vaccine available
Canine distemper
Viral · Vaccine available
Kennel cough
Viral · Vaccine available
Canine leishmaniasis
Parasitic