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Ear Mite Infestation

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Cats

About this condition

An infestation of Otodectes cynotis mites in the ear canal, commonly seen in kittens and cats in multi-cat households. Intense itching and dark brown ear discharge are characteristic; the condition responds well to appropriate treatment.

Common symptoms

  • Vigorous head shaking or scratching at the ears
  • Increased dark brown, dry ear discharge
  • Redness and swelling of the ear canal
  • Odor coming from the ears

Common causes

  • Infestation by Otodectes cynotis ear mites
  • Contact with infected cats or other infested animals
  • Exposure to infected cats outdoors
  • Spread within multi-cat households

Prevention (husbandry & daily care)

Limit outdoor exposure, examine and quarantine new cats before introduction in multi-cat environments, and regularly inspect and clean ears.

Related species guide

Browse the species guide for this animal

When to see a vet

Monitor; see a vet if it worsens

What treatment does a vet provide?

Veterinarians confirm the mite infestation using an otoscope or microscopy, then prescribe appropriate antiparasitic medication. Secondary bacterial infection, if present, is treated concurrently.

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