What are the signs of ear infections in dogs (otitis)?

Head shaking; Scratching at ears; Red, smelly or waxy ears; Pain when ears are touched; Head tilt in deeper infections.

When should I contact a veterinarian?

Do not put cotton buds or home remedies into the ear canal. A head tilt, balance problems or severe pain need prompt assessment.

Ears and skin · Updated 2026-09-29

Inflammation and infection of the ear canal — one of the most common reasons dogs visit the vet, and often recurrent without a plan.

Prompt veterinary attentionDogs

Allergies are the most common underlying driver; ear shape, moisture, grass seeds, mites and hormonal disease also contribute.

Otoscope examination and microscopy of ear debris identify yeast, bacteria or mites; recurrent cases need the underlying cause investigated.

Vet-prescribed ear cleaners and medicated drops, sometimes oral medication. Treating the allergy or cause is essential to stop recurrence.

Dry ears after swimming, use vet-recommended maintenance cleaning for prone dogs, and manage allergies proactively.

Individual episodes respond well, but chronic untreated otitis can permanently narrow the ear canal.

What are the signs of ear infections in dogs (otitis)?: Head shaking; Scratching at ears; Red, smelly or waxy ears; Pain when ears are touched; Head tilt in deeper infections.
What causes ear infections in dogs (otitis)?: Allergies are the most common underlying driver; ear shape, moisture, grass seeds, mites and hormonal disease also contribute.
How is ear infections in dogs (otitis) diagnosed?: Otoscope examination and microscopy of ear debris identify yeast, bacteria or mites; recurrent cases need the underlying cause investigated.
How is ear infections in dogs (otitis) treated?: Vet-prescribed ear cleaners and medicated drops, sometimes oral medication. Treating the allergy or cause is essential to stop recurrence.
Can ear infections in dogs (otitis) be prevented?: Dry ears after swimming, use vet-recommended maintenance cleaning for prone dogs, and manage allergies proactively.
When should I contact a veterinarian?: Do not put cotton buds or home remedies into the ear canal. A head tilt, balance problems or severe pain need prompt assessment.