Watching your dog repeatedly scratch an ear and shake their head during the night can be frustrating and concerning, especially if it keeps interrupting sleep.
Occasional ear scratching may be harmless, but repeated nighttime episodes can sometimes indicate irritation, infection, allergies, or another issue affecting the ears.
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Dog Scratching Ear and Shaking Head at Night: Why It Happens
A dog scratching an ear and shaking the head at night usually happens because something is irritating the ear canal or surrounding skin.
Ear infections, allergies, trapped debris, parasites, and skin inflammation are common causes.
The behavior may seem worse at night because dogs are resting and become more aware of discomfort that may have been easier to ignore during the day.
Dog Scratching Ear and Shaking Head at Night: Symptoms
If your dog is scratching an ear and shaking their head at night, common symptoms may include:
Frequent ear scratching
Repeated head shaking
Ear redness
Ear odor
Pawing at the face
Head tilting
Ear sensitivity
Restlessness at night
Dog Scratching Ear and Shaking Head at Night: Common Causes
Ear Infection
Ear infections are one of the most common reasons dogs suddenly begin scratching and shaking their heads. Bacteria or yeast can grow inside the ear canal and create inflammation that becomes uncomfortable and itchy.
As the irritation worsens, dogs may repeatedly scratch at the affected ear and shake their head in an attempt to relieve the sensation.
Nighttime often seems worse because the dog is resting and paying more attention to the discomfort.
You may also notice redness, warmth around the ear, discharge, or an unpleasant smell. Some dogs become sensitive when the ear is touched.
Related: Dog excessively itching but no fleas (Causes that affect skin health)
Allergies
Allergies frequently affect the ears because inflammation can develop in the skin lining the ear canal. Dogs may react to pollen, grass, dust mites, mold, food ingredients, or other allergens.
Some dogs experience seasonal flare-ups while others struggle throughout the year. Repeated inflammation can create ongoing itchiness and increase the risk of secondary ear infections.
Dogs with allergies often show additional symptoms such as paw licking, itchy skin, face rubbing, or recurrent skin problems.
Read more: Dog Losing Hair and Itching (Why it happens)
Ear Mites or Parasites
Tiny parasites can create significant irritation inside the ears. Ear mites are more common in puppies but can affect dogs of various ages.
The movement and irritation caused by mites can create intense itchiness, causing dogs to scratch and shake their heads repeatedly.
Some dogs develop dark debris within the ears along with increasing discomfort. If left untreated, constant scratching may eventually lead to skin damage around the ears.
Something Trapped Inside the Ear
Foreign material occasionally becomes trapped inside the ear canal and creates sudden irritation.
Grass seeds, dirt, plant material, small insects, or other debris can become lodged in the ear. Even a tiny object can feel extremely irritating and trigger constant scratching and head shaking.
Dogs often react suddenly if a foreign object enters the ear. The behavior may continue repeatedly until the source of irritation is removed.
Excess Moisture in the Ear
Moisture trapped inside the ears can sometimes create problems, especially after swimming, bathing, or spending time in wet conditions.
Warm, moist environments allow bacteria and yeast to grow more easily. Dogs with floppy ears may be especially prone because airflow inside the ear canal can be reduced.
Owners sometimes notice symptoms beginning a day or two after water exposure rather than immediately afterward.
Skin Irritation Around the Ear
Sometimes the problem is not deep inside the ear itself but rather the skin around it.
Flea bites, insect bites, skin allergies, or irritated skin near the ears can cause dogs to scratch and shake their heads repeatedly.
The dog may appear to be having an ear problem when the discomfort is actually affecting nearby skin.
Careful examination of the surrounding skin may reveal redness, bumps, or irritation.
Dog Scratching Ear and Shaking Head at Night: What to Do
Start by looking at the outside of your dog’s ear if they allow it. Check for redness, discharge, swelling, odor, or visible irritation.
Avoid placing cotton swabs or objects deep into the ear canal because this can push debris farther in or cause injury.
Think about recent activities such as swimming, bathing, outdoor walks, or exposure to new environments that could help explain the symptoms.
Monitor whether the behavior is getting worse and watch for additional signs such as scratching other areas of the body or changes in behavior.
When to Call or Visit Your Vet
Contact your veterinarian if the scratching and head shaking continue for more than a day or repeatedly return.
Schedule an appointment if you notice redness, odor, discharge, head tilting, swelling, or increasing discomfort.
Seek immediate veterinary attention if your dog develops:
Severe pain
Loss of balance
Walking abnormally
Significant swelling
Bleeding from the ear
Extreme distress
Dog Scratching Ear and Shaking Head at Night: Treatment
The veterinarian may examine the ear canal and look for infections, parasites, inflammation, or foreign material. Samples from the ear may be evaluated if infection is suspected.
Treatment depends on the cause and may include ear medications, cleaning solutions, parasite treatment, allergy management, or removal of trapped debris.
Key Takeaway
A dog scratching its ear and shaking its head at night often has some form of irritation affecting the ears or surrounding skin. While mild causes are possible, repeated symptoms can indicate infections, allergies, or other problems that become increasingly uncomfortable.
Pay attention to changes and accompanying symptoms. If the scratching continues or worsens, veterinary care can help identify the cause and provide relief.