How to Know If Your Dog Has an Ear Infection
Ear infections are among the most common causes of discomfort in dogs, often signaled by head shaking and scratching. Understanding the symptoms and knowing when to seek veterinary help is critical to your dog's health and comfort.
Common Signs of an Ear Infection
- Frequent head shaking: Dogs shake their heads to alleviate itchiness or discomfort in the ear canal.
- Redness or swelling inside the ear: Inflamed ears are a classic indicator of an infection.
- Visible discharge: Bacterial or yeast infections often cause pus-like or waxy discharges.
- Unpleasant odor: Infected ears may smell foul due to accumulated debris or growth of bacteria/yeast.
- Scratching or pawing at ears: Dogs may persistently scratch the affected area in response to discomfort.
- Sensitivity or pain: Touching the ear may cause your dog to pull away, yelp, or show aggression.
Causes of Canine Ear Infections
- Bacteria or yeast: The most common culprits of ear infections in dogs, often thriving in moist environments.
- Allergies: Food or environmental allergies can lead to recurrent ear and skin infections.
- Foreign objects: Grass seeds, insects, or debris can cause irritation and infections.
- Water retention: After baths or swimming, trapped water can create an ideal habitat for microbial growth.
- Ear mites: Though less common in adult dogs, especially prevalent in puppies from unsanitary conditions.
- Growths or tumors: Masses inside the ear canal may lead to secondary infections and discomfort.
- Neurological disorders: Conditions like vestibular disease may cause head shaking or imbalance, requiring advanced diagnosis.
When to See a Veterinarian
Persistent, vigorous, or repetitive head shaking for more than a day requires professional evaluation. Look for:
- Continuous scratching or head tilting
- Redness, swelling, or warmth around the ear
- Discharge that is yellow, brown, or bloody
- Signs of pain or behavioral changes
Left untreated, ear infections can lead to more serious complications such as:
- Aural hematomas: These blood pockets form due to ruptured blood vessels from intense scratching or shaking.
- Middle or inner ear damage: Can affect balance and hearing if the infection spreads deeper.
How Are Ear Infections Diagnosed?
Veterinarians begin with a thorough physical and otoscopic examination to visualize the ear canal. Additional tests may include:
- Cytology to examine cell types or infectious agents
- Allergy testing for recurrent infections
- Imaging (MRI/CT scans) for deep-seated or chronic issues
Treatment Options
- Antibiotics or antifungals: Depending on the infection source
- Ear cleaners: Prescribed solutions help clear wax and debris
- Anti-inflammatory drugs: To reduce swelling and pain
- Allergy management: Diet trials or environmental control may be necessary
Important: Never attempt to treat or flush your dog’s ears at home without veterinary guidance. You could worsen the condition or injure your pet.
Prevention Tips
- Keep dog’s ears dry during and after baths or swims
- Use cotton balls to prevent water from entering ear canals
- Regular cleaning with vet-approved solutions
- Monitor for early signs of discomfort
Distinguishing Between Head Shaking and Tremors
It’s important to differentiate between your dog shaking its head voluntarily and involuntary tremors or bobbing that could indicate neurological issues or congenital conditions. Watch for:
- Frequency and duration of the episodes
- Presence while resting versus after activity
- Coordination or balance problems
If you notice abnormal involuntary movement, consult your vet, especially if combined with other neurologic symptoms.
Conclusion
While occasional head shaking is normal, frequent or intense shaking could indicate an ear infection or other health concerns. Timely diagnosis and professional treatment are key to preventing complications and improving your dog’s quality of life.
If you suspect your dog has an ear infection, seek a veterinarian’s help right away to ensure proper treatment and recovery.





