A quick ear scratch or head shake after waking up is common. Repeated shaking, persistent scratching or one ear suddenly bothering your dog is different. It usually means something is irritating, uncomfortable or painful, even if the ear looks fairly normal from the outside.
The useful question is not “Which home remedy should I try?” It is “What has changed, how uncomfortable is my dog, and how quickly should I call the vet?”
Quick answer
- Occasional brief scratching or shaking can be normal. Repeated, sudden or persistent behaviour needs veterinary advice.
- Redness, heat, swelling, discharge, an unusual smell, pain or reluctance to have the ear touched are all reasons to call your vet.
- A head tilt, loss of balance, circling, an uncontrolled head tremor or rapid deterioration needs urgent veterinary advice.
- Do not put cotton buds, tweezers, leftover drops or an unapproved cleaner into a sore ear.
- Ear trouble can have several causes. A vet needs to look into the ear rather than guessing from one sign.
When is head shaking or ear scratching more than a passing itch?
Dogs use a quick shake to clear water, move loose hair or deal with a momentary tickle. What matters is the pattern. Contact your vet if the behaviour is happening more often than usual, keeps returning, wakes your dog, interrupts walks or rest, or focuses on one ear.
You do not need to wait for dramatic signs. Ear problems can be painful before there is obvious discharge or swelling, and vigorous shaking can injure the ear flap.
What should you look and listen for?
Watch your dog without pulling the ear around. If they are comfortable with gentle handling, you can lift the outer flap and look only at what is easily visible. Stop if they pull away, cry, growl or seem painful.
Useful details for your vet include:
- whether one ear or both ears are affected
- when the shaking or scratching started and how often it happens
- redness, heat or swelling around the ear opening or flap
- wax or discharge, including its colour and amount
- a smell that is different from normal
- rubbing the head on the floor or furniture
- pain when the head or ear is touched
- a head tilt, reduced hearing, unsteadiness or loss of balance
- itchy skin, sore paws or other changes elsewhere on the body
- recent swimming, bathing, grooming or walks through long grass
A short video of the behaviour can help, especially if it comes and goes. Do not delay an urgent call while trying to capture the perfect clip.
Why guessing the cause is risky
Head shaking and scratching describe discomfort. They do not identify the cause. Possible explanations include inflammation or infection, skin disease, parasites, excess wax, an injury, a swollen ear flap or something lodged in the ear canal. A grass seed is one possible foreign object, particularly after walks through long vegetation, but it cannot be confirmed safely from the outside.
The same sign can therefore lead to very different care. Dark material is not proof of ear mites. A smelly ear is not something to cover with a fragranced cleaner. Recurring ear trouble is not proof of a food allergy. Your vet may need to examine the canal and eardrum and, where appropriate, check a sample under a microscope.
When should you call your vet?
Call your vet as soon as possible if your dog is repeatedly shaking their head or scratching an ear, or if you notice:
- red, hot, swollen or sore-looking skin
- wax or discharge that is more than usual
- blood, pus or crusting
- an unpleasant or unusual smell
- pain or reluctance to have the ear or head touched
- the ear flap beginning to swell
- reduced response to sound
- symptoms that improve briefly and then return
If the behaviour started suddenly after a walk, especially if it is intense or focused on one ear, contact your vet promptly and mention the possibility of something being trapped in the ear.
Which signs need urgent help?
Contact your vet urgently if your dog has:
- a persistent head tilt
- loss of balance, stumbling, circling or unusual eye movements
- an uncontrolled head tremor rather than a deliberate shake
- marked pain, repeated crying or an inability to settle
- a rapidly swelling ear flap
- sudden weakness, collapse or a rapid change in their general condition
If you are unsure how quickly your dog needs to be seen, phone the practice and describe the signs. The veterinary team can triage the situation and tell you whether an emergency appointment is needed.
What not to do before the appointment
- Do not insert cotton buds, fingers or tweezers. The ear canal turns inward, so reaching into it can push material deeper or cause damage.
- Do not reuse old ear drops. A previous prescription may be wrong for the current problem, out of date or unsafe if the eardrum is affected.
- Do not start cleaning a painful or discharging ear unless your vet advises it. Cleaning can hurt, hide useful evidence or make a trapped object harder to assess.
- Do not assume it is “just wax”. Extra wax can occur alongside several ear problems.
- Do not force handling. Even a gentle dog may react when an ear is painful.
Keep the ear dry, prevent rough rubbing where you safely can, and ask the practice what to do while you wait. Do not give human painkillers.
What might happen at the vet?
Your vet will ask about the pattern, recent activities and any previous ear or skin problems. They may examine the outer ear and look into the canal with an otoscope. Depending on what they find, they may take a sample, check for infection or parasites, assess the eardrum, or recommend further investigation.
Some ears are too painful or swollen for a full examination while a dog is awake. If that happens, the vet will explain the safest next step. Treatment depends on the cause, so following the instructions and completing any recheck matters even if the scratching settles quickly.
A practical ear-change checklist
- Notice the pattern. One quick shake is different from repeated or one-sided behaviour.
- Check only what is easy to see. Look for redness, swelling, discharge or a new smell without probing the canal.
- Record useful context. Note swimming, grooming, long grass, skin itching and previous ear trouble.
- Take a short video if safe. It may help your vet see an intermittent sign.
- Call early. Persistent scratching or shaking deserves veterinary advice before the ear becomes more painful.
- Know the urgent signs. Head tilt, balance loss, uncontrolled tremor, severe pain or rapid swelling should not wait.
The bottom line
Repeated head shaking or ear scratching is a sign to investigate, not a diagnosis. The outside of the ear may give you useful clues, but it cannot show everything happening deeper in the canal.
Keep your notes simple, avoid putting anything into a sore ear and contact your vet early. This guide gives general information for UK dog owners and does not replace advice from the veterinary team who knows your dog.
Related reading
- Grass Seeds and Dogs: What to Check After Summer Walks
- Is Your Dog Itchy After Walks?
- Food Allergy or Food Intolerance in Dogs: Why It Is Hard to Tell
Reviewed: 14 September 2026.
