Dog Brown Ear Discharge and Head Shaking: Causes and Triage

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TL;DR: Brown ear discharge and head shaking are common signs of an ear infection (otitis externa) that, while not typically a life-threatening emergency, require a veterinary appointment within 24 to 48 hours to prevent complications.

What does it mean if my dog has brown ear discharge and is shaking its head?

When a dog exhibits brown, waxy, or crumbly discharge accompanied by persistent head shaking, it is usually a sign of an ear infection, known as otitis externa. This discharge is often a buildup of yeast, bacteria, or ear wax caused by inflammation in the ear canal. The head shaking is a reflex to alleviate the itching, pressure, or pain deep inside the ear.

Is brown ear discharge and head shaking in dogs a medical emergency?

  • The urgency level for this condition is generally low; while uncomfortable or painful, it is not typically life-threatening.
  • You should schedule a veterinary appointment within 24 to 48 hours.
  • Delaying treatment can lead to more severe issues, such as a ruptured eardrum or an aural hematoma from excessive shaking.

How does providing a photo of my dog's ear help the triage process?

  • A clear, well-lit photo allows a professional to observe the color, consistency, and volume of the debris.
  • It helps assess the degree of redness or swelling inside the ear flap.
  • This information helps determine whether the issue looks like a standard yeast overgrowth or something that requires more immediate diagnostic testing.

Clinical Context (Merck Veterinary Manual)

In dogs, clinical signs of otitis media and externa include head shaking, rubbing or scratching at the affected ear, and tilting or rotating the head towards the affected side. Self-trauma can lead to aural hematoma. When otitis externa accompanies otitis media, the external ear canal may appear inflamed and contain an abnormal discharge, and the pinna or ear canal may be painful and malodorous. Examination of the ear should note erythema, edema, crusts, scale, ulcers, lichenification, hyperpigmentation, or exudate, as well as evidence of self-trauma and primary or secondary skin lesions. Pinnal deformities, hyperplastic tissue in the canal, and head shaking suggest chronic otic discomfort. If the ear is painful or the degree of discomfort is high, the animal should be sedated before performing any further diagnostic testing.

Chapter: Dermatology

Source: The Merck Veterinary Manual, 11th Edition (Page 528)

Protocol reviewed by Dr. Emily Chen, DVM

Frequently Asked Questions

Can I use human ear drops on my dog?
No, you should never use human medications or over-the-counter drops without a vet's approval, as some ingredients can be toxic to dogs or damaging if the eardrum is ruptured.
Is brown ear discharge always ear mites?
Not necessarily. While ear mites cause dark discharge, yeast and bacterial infections are much more common causes in adult dogs.
How can I make my dog comfortable until the vet appointment?
Keep your dog from scratching at the ear by using an Elizabethan collar (cone) and avoid putting any liquids or cleaners into the ear until the vet has performed an exam.

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