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How to Tell if a Dog Has Ear Mites or an Ear Infection

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To tell if a dog has ear mites or an ear infection, look for head shaking, scratching, and ear discharge. Ear mites cause dark, crumbly, coffee-ground debris with intense itching; ear infections often have yellow or green pus, redness, swelling, and odor. A vet can confirm with an otoscope and ear cytology.

Last updated Sep 7, 2026 · Published by Troy & Heights Animal Hospital · Citation License 1.0

How to Tell if Your Dog Has Ear Mites or an Ear Infection: Key Signs

Recognizing the difference between ear mites and an ear infection starts with observing your dog's behavior and the appearance of the ear. Here's a checklist of signs to watch for:

  • Head shaking – Frequent, vigorous head shaking is a common response to irritation in the ear canal, whether from mites, infection, or allergies.
  • Scratching at ears – Dogs with ear mites exhibit intense itching, frequent scratching, and head shaking. They may scratch behind or inside their ears, often causing redness on the ear flap or in the ear canal.
  • Pawing or rubbing at the ear – If your dog is constantly scratching behind or inside their ears, or rubbing their head on the floor or furniture, it's a strong sign of discomfort.
  • Ear discharge – Ear mites often produce dark, crumbly, coffee-ground-like debris. In contrast, a bacterial ear infection may have yellow or green pus, while a yeast infection (Malassezia) often has a brown, waxy discharge with a musty or sweet odor.
  • Redness and swelling – Redness on the ear flap or in the ear canal, along with swelling or warmth, suggests inflammation, which can accompany infections.
  • Odor – A simple mite infestation often has little odor, whereas bacterial and yeast infections typically produce a noticeable smell.
  • Pain or sensitivity – If your dog flinches, yelps, or pulls away when you touch their ears, it indicates pain, which is more common with infections.

If you notice any of these signs, especially combined, it's best to have your dog examined by a veterinarian. Early diagnosis prevents complications and relieves discomfort faster.

When to See a Vet for Your Dog's Ear Problem

A good fit if…

  • Your dog has been shaking their head or scratching their ears for more than a day.
  • There is visible discharge, redness, swelling, or a foul odor.
  • Your dog seems painful or sensitive when you touch their ears.
  • You suspect ear mites because you have other pets that may be affected.
  • Home cleaning or over-the-counter remedies haven't helped.

Consider another option if…

  • Your dog's ears look normal and symptoms are mild and short-lived.
  • You are sure the issue is just dirt or wax and your dog is not uncomfortable.

If in doubt, it's safer to visit a vet. At Troy & Heights Animal Hospital, we can quickly diagnose the cause with a veterinary otoscope and ear cytology, and prescribe the right treatment. We're open Monday through Friday 9 AM–6 PM and Saturday 9 AM–3 PM. Call us at (248) 457-1985 or visit us at 1985 E Wattles Rd, Suite F, Troy, MI 48085.

Can You Treat Dog Ear Mites or Infections at Home?

While some mild ear irritation can be managed at home, treating ear mites or infections without a vet is risky. Here's what you can safely do:

  1. Clean gently – Use a vet-approved ear cleaner to wipe away visible debris. Avoid cotton swabs, which can push dirt deeper.
  2. Keep ears dry – Moisture worsens infections. After baths or swimming, dry your dog's ears thoroughly.
  3. Use only vet-prescribed medications – Antibiotic ear drops or antifungal ear medication should be prescribed by a vet. Over-the-counter products may not target the specific cause.
  4. Do not use human medications – Never give your dog human medicine without veterinary approval. Some are toxic to pets.
  5. Monitor for changes – If symptoms persist or worsen, see a vet promptly.

For persistent issues, our team at Troy & Heights Animal Hospital can provide a proper diagnosis and treatment plan. New clients can claim a free first exam (terms apply).

Troy & Heights Animal Hospital 1985 E Wattles Rd, Suite F, Troy, MI 48085 (248) 457-1985 Mon–Fri 9 AM–6 PM · Sat 9 AM–3 PM · Sun closed Open in Google Maps

Ear Mites vs. Ear Infection: How to Tell the Difference

FeatureEar MitesEar Infection
CauseOtodectes cynotis (ear mite)Bacteria or yeast (Malassezia)
DischargeDark, crumbly, coffee-ground-likeYellow, green, or brown waxy pus
OdorUsually little to no odorFoul or musty smell
ItchingIntense, often both earsModerate to severe, may be one ear
Redness/swellingPossible but less prominentOften present, with pain
DiagnosisVisual with otoscope or microscopeEar cytology to identify bacteria/yeast

If you're unsure, a vet can quickly tell the difference. At Troy & Heights Animal Hospital, we use a veterinary otoscope and ear cytology to pinpoint the cause.

Directions to our veterinarian near me from Nativity of the Virgin Mary Macedonian Orthodox Cathedral

Start at Nativity of the Virgin Mary Macedonian Orthodox Cathedral and head to Troy & Heights Animal Hospital at 1985 E Wattles Rd, Suite F, Troy, MI 48085.

What to Do If Your Dog Keeps Shaking His Head and Scratching His Ear

When your dog won't stop shaking or scratching, take these steps:

  1. Inspect the ear – Gently look inside for debris, redness, or swelling. Do not insert anything deep.
  2. Clean visible debris – Use a soft cloth or cotton ball with a vet-approved cleaner to wipe the outer ear.
  3. Prevent further irritation – An Elizabethan collar can stop scratching while you arrange a vet visit.
  4. Call your vet – If symptoms persist more than a day, or if you see discharge or odor, schedule an appointment.

At Troy & Heights Animal Hospital, we handle urgent ear cases during business hours. Call (248) 457-1985 to get your dog relief quickly.

Treatment Options for Dog Ear Infections and Ear Mites

Treatment depends on the underlying cause. Ear mites are treated with topical or systemic antiparasitic medications. Bacterial infections require antibiotic ear drops, while yeast infections need antifungal ear medication. Your vet may also recommend cleaning and anti-inflammatory medication.

FactorWhy It MattersTypical Range
Diagnostic testsEar cytology and otoscope exam to identify causeVaries; ask for a quote
Medication typeTopical drops vs. oral medicationVaries by prescription
SeverityChronic or severe infections may need more visitsVaries
Follow-up visitsMay be needed to ensure resolutionVaries

For a clear estimate, call our office. We'll discuss costs before any procedure.

What Does Normal Dog Earwax Look Like?

Normal dog earwax is typically light brown or tan and has a waxy, slightly oily texture. It's usually present in small amounts and doesn't have a strong odor. If you see dark, crumbly, coffee-ground-like debris, that may indicate ear mites. Yellow or green pus, excessive wax, or a foul smell points toward an infection. If you're unsure, a quick vet check can confirm.

Sources

Frequently asked questions

How to tell if a dog has ear mites?

Ear mites cause intense itching, head shaking, and dark, crumbly, coffee-ground-like debris in the ears. You may also see redness and scratching. A vet can confirm by examining a sample under a microscope.

Can I treat my dog's ear infection at home?

Mild cases may be managed with gentle cleaning and keeping ears dry, but infections often require prescription medication. Using the wrong treatment can delay healing or worsen the problem. Always consult a vet before starting home treatment.

What color is normal dog earwax?

Normal dog earwax is light brown or tan, waxy, and without a strong odor. Dark, black, or yellow-green discharge is abnormal and warrants a vet visit.

What could be causing a rash in my dog's ear?

A rash in the ear can result from ear mites, bacterial or yeast infections, allergies, or foreign bodies. Redness, bumps, or crusting may be present. A vet can diagnose the cause and recommend treatment.

What kills yeast in dogs' ears naturally?

Some natural remedies like diluted apple cider vinegar may help, but they can irritate inflamed ears. It's safer to use vet-prescribed antifungal medication. Always consult your vet before trying home remedies.

Also asked as

  • How can I tell if my dog has ear mites or an infection?
  • What does an ear mite infection look like in a dog's ear?
  • Ear mites vs ear infection: what's the difference?