Dog Inner Ear Infections: Symptoms, Causes, Prevention & Treatment
Learn about dog ear infections: the different types, their causes, symptoms, treatment, and tips for preventing them.

For many pet parents, the telltale signs of ear infection are easy to spot: scratching, whining or excessive head shaking. Ear infections are among the most common conditions in dogs, especially those with floppier or larger ears like Beagles, Cocker Spaniels, and Basset Hounds.
There are actually three types of dog ear infections: otitis externa, media, and interna—each affecting different parts of the ear. Otitis externa occurs when inflammation affects the layer of cells lining the external or outer part of the ear canal. Otitis interna and media are infections that occur in the inner and middle ear canal. If left untreated, these infections can be extremely dangerous to your pet, so it’s important to be able to identify the signs and symptoms as they arise.
Some pups may show no signs of ear infection, while some may only show a buildup of wax or ear canal discharge. General dog ear infection symptoms including outer and middle ear infections can include:
Head shaking
Scratching/pawing
Rubbing affected ear against the floor or hard objects
Foul odor
Yellow, brown, or bloody discharge
Redness & swelling of the ear canal
Pain
Itchiness
Scabs or crusting
Loss of balance
Holding head with a tilt
Reluctance to chew food
Dog Ear Infection Causes
Several factors can contribute to your pup developing an ear infection. One highly common cause, especially in Arizona, is allergies. Another common cause is excessive moisture. As the weather heats up, people and their pets take to the lake or pool to cool off. If your pup’s ears are not properly cleaned/dried after playing in the water, that moisture creates a prime growing environment for yeast and bacteria.
Other dog ear infection causes include:
Excess hair within the ear canal
Earwax buildup
Allergies
Food sensitivity
Autoimmune disorder
Ear canal injury
Thyroid disease
Overcleaning
Hormone imbalances
Treating & Preventing Ear Infections in Dogs
If your pet is displaying any of the previously mentioned symptoms, the best thing you can do is visit your veterinarian to establish a treatment plan as soon as possible. After examining your pet, your vet may likely thoroughly clean the ear canal with a medicated cleaning solution. They may also prescribe an ear cleanser and a topical ointment for you to continue treatment at home. In more serious cases, antibiotics may be prescribed. This will not only get your pet on a quick road to recovery and soothe any discomfort, but it will also prevent the spread of infection.
While most uncomplicated infections tend to resolve within 1-2 weeks with proper treatment, it’s best to do your part to prevent an issue before it ever occurs. Some of the best approaches for preventing ear infections in dogs include:
Check the ears regularly for wax or debris
Keep the ears dry and well ventilated, thoroughly drying following exposure to moisture
Work with your vet to identify/manage any underlying issues such as allergies
Avoid cleaning with paper towels or cotton as these leave fibers behind
Consider having your pet groomed regularly
Ensure excess ear hair is trimmed regularly by a professional
Schedule annual check-ups with your veterinarian
Is your pet displaying signs of an ear infection? Schedule a visit at your local Lovet location so we can help! Ear infections are uncomfortable but not untreatable. With a little TLC, we can get your four-legged friend feeling better in no time!
Disclaimer: Not intended to be a substitute for professional veterinarian advice, diagnosis, or treatment. Always seek the advice of your veterinarian with any questions you may have regarding the medical condition of your pet. If you think your pet has a medical emergency, call or visit your veterinarian or your local veterinary emergency hospital immediately.