Dog Shaking Head a Lot? Ears, Allergies or Something Stuck

Why dogs shake their heads, what one-ear or sudden shaking can mean, and which signs need a vet soon, the same day or right now.

Quick answer: A few head shakes after a bath or swim are normal. Shaking that lasts past a day, or comes with smell, redness, discharge or scratching, usually means an ear infection or allergy: see a vet soon. Violent shaking or pawing at one ear after grass needs a vet the same day. A sudden head tilt, lost balance, severe ear pain or ear canal bleeding needs an emergency vet now.

This article is general information, not a diagnosis. If you think your pet is in danger, go to the nearest emergency animal hospital.

When is a dog shaking its head an emergency?

Go to the nearest emergency vet now for a sudden head tilt, loss of balance, circling or falling to one side; flicking or darting eyes, especially with vomiting; sudden hearing loss, a drooping face or an eye that cannot blink; severe ear pain (the dog cries or will not let anyone touch the ear), fever with ear pain, or bleeding from the ear canal. The same applies to a head tilt, loss of balance or sudden deafness that starts after ear drops or a cleaning: put nothing more in the ear and go. Pain when opening the mouth or chewing, or refusing food or extreme lethargy along with ear pain, needs a vet the same day.

An older dog with a sudden head tilt, flicking eyes, vomiting or falling needs an emergency vet now, even with no ear signs; an owner cannot tell an inner-ear cause from a brain cause at home.

Sign	How soon	Where
Head tilt, falling	Now	ER
Flicking eyes	Now	ER
Drooping face	Now	ER
Severe pain, fever	Now	ER
Blood from canal	Now	ER
Tilt after drops	Now	ER
Pus from canal	Same day	Vet
Pain when chewing	Same day	Vet
Sudden shaking, grass	Same day	Vet
Hot, leaking flap	Same day	Vet
Balloon flap, eating	24-48 hours	Clinic
Smell, redness, itch	Soon	Clinic
Shaking past a day	Soon	Vet
Few shakes after bath	No rush	Watch

Same day means your vet today, or an emergency clinic if no clinic can see your dog today.

• A frantic or crying dog that cannot be settled after pawing at one ear is in severe ear pain: emergency vet now.
• Pawing at the mouth, drooling, gagging or trouble swallowing with head shaking can mean something is stuck in the mouth or throat: see a vet now, or an emergency vet now if breathing is hard.
• A puffy face or hives within the first hour after a sting, a vaccine or a new medicine, or swelling with vomiting, pale gums, weakness, breathing trouble or collapse: emergency vet now, and give no antihistamine or other medicine at home.
• Tremors, twitching or shaking after a dog may have eaten something toxic: call ASPCA Animal Poison Control at (888) 426-4435 (a consultation fee may apply) or Pet Poison Helpline at (855) 764-7661 (a per-incident fee applies) and head to an emergency vet.

Is it normal for a dog to shake its head?

Yes: a few quick head shakes that stop on their own are how a dog clears water, a bit of grass or an insect from its ears, but shaking that keeps coming back through the day or lasts past a day is not normal. PetMD advises a vet appointment if a dog's repeated head shaking does not stop over the course of a day or so. Not all head shaking starts in the ears: a head tremor or something stuck in the mouth can look similar.

What the pattern tells you: one ear or both, sudden or slow

Sudden, violent head shaking or pawing at one ear right after time in grass or brush points to something stuck, such as a grass seed, and needs a vet the same day, while shaking that builds slowly in both ears with itching points to an allergy or infection and needs a vet soon. A 2025 Today's Veterinary Practice review says inflammation in only one ear should make a vet look first for a foreign body such as a plant awn, a middle-ear infection or a growth.

Pattern	Likely cause	How soon
Sudden, one ear, grass	Grass seed	Same day
Slow start, smell, wax	Infection	Soon
Both ears, itchy paws	Allergy	Soon
Dark crumbs, puppy or cats	Mites, yeast	Soon
One ear, lump	Polyp, mass	Soon
After bath or swim	Water	Watch a day
After grooming	Irritation	Watch a day
Bobbing, dog alert	Head tremor	Film, see vet
Puffy ear flap	Hematoma	24-48 hours
Tilt, lost balance	Inner ear, brain	ER now

A vet should confirm mites under a microscope before any pet is treated; in adult dogs, dark debris is more often yeast. Never share ear medicine between pets or put a dog's ear product in a cat. A puffy flap needs the same day if it is hot, splitting or leaking pus or the dog is off food or lethargic.

Is head shaking a sign of an ear infection?

A dog that shakes its head and has a bad smell, brown or yellow discharge, redness, swelling or mild tenderness when the ear is handled usually has an outer ear infection and needs an in-person vet exam soon; a dog that cries or will not let anyone touch the ear needs an emergency vet now. The Merck Veterinary Manual lists head shaking, foul odor, redness, swelling, scratching and ear discharge as signs of outer ear infection.

A camera cannot see a dog's eardrum, and many FDA-approved dog ear medicines are labeled for use only after a vet confirms the eardrum is intact, so a first infection, a new flare or a sore ear needs an otoscope exam and often ear cytology at a clinic. For what each wax color can mean, see dog ear wax color and what it means; for infections that keep returning, see why a dog keeps getting ear infections.

Can allergies make a dog shake its head?

Yes: environmental and food allergies often inflame a dog's ear canals, so allergic head shaking usually involves both ears and comes with licked or chewed paws or itching on the face, front legs or belly, and needs a vet visit soon. The Merck Veterinary Manual says allergens such as dust mites, pollen and mold, and food allergies, often cause red, itchy ears that can lead to ear canal infections.

RexVet's study of its video visits found: "Skin was the top concern in RexVet dog visits (18%), followed by itching, ear problems and allergies."

For itch with no fleas behind it, see dog itching but no fleas.

Could something be stuck in my dog's ear?

Sudden, violent head shaking or pawing at one ear after time in grass or brush can mean a grass seed or other object is stuck in the ear canal, and the dog needs a vet the same day. Do not probe, pull at or pour anything into the ear; removal needs an otoscope. VCA Animal Hospitals notes that a dog can be sedated so a foreign body lodged in the ear canal can be removed, and that a grass seed can cause an inner ear infection. A frantic or crying dog, or a head tilt, loss of balance or flicking eyes after a walk, means an emergency vet now; PetMD calls a deeply lodged ear foreign body a veterinary emergency.

Why is my dog shaking its head after a bath, swim or grooming?

Water, ear cleaner or plucked or loosened hair can irritate a dog's ear canal for a short time after a bath, swim or groom, so a brief shake that stops, with no smell, discharge, pain or head tilt, can be watched, but shaking that keeps going past a day needs a vet.

Lift each ear flap and gently pat the underside of the flap and the outer ear dry with a soft towel; do not push a finger, towel or anything else into the ear canal. The Merck Veterinary Manual advises keeping water out of the ears during baths and asking the vet before ear hair is removed; skip ear powder after plucking, because it can form irritating masses in the canal. A head tilt, wobbly walking or falling after a bath, cleaning or groom means an emergency vet now.

Head shaking or head tremor: how to tell

A head tremor is a rhythmic up-and-down (yes) or side-to-side (no) bobbing that a dog cannot control, often while alert and often stopping when distracted, while a head shake is a hard, deliberate whole-head flick aimed at an ear; film either one and show a vet.

A 2015 Veterinary Medicine International study of 291 dogs with idiopathic head tremor found the tremors lasted under 5 minutes in 82% of dogs (5 to 60 minutes in 15%), 93% were alert or responsive during episodes, and distraction stopped the tremor, at least for a while, in 87%; Bulldogs made up 37% of the dogs, Boxers 13%, Labrador Retrievers 11% and Doberman Pinschers 8%. No test confirms idiopathic head tremor, so a vet also checks for other causes.

Go to an emergency vet now if the dog does not respond to its name or cannot be distracted, the whole body shakes, or the dog paddles, collapses, loses bladder control, has a head tilt or loses balance, and call a poison line listed above if it may have eaten something toxic.

Can head shaking hurt my dog's ear?

Yes: hard, repeated head shaking can break a blood vessel in a dog's ear flap and cause an aural hematoma, which needs a clinic within 24 to 48 hours if the dog is eating and acting normally, or the same day if the ear is hot, splitting or leaking pus or the dog is off food or lethargic. VCA Animal Hospitals says aural hematomas are very painful and should be treated promptly. Do not drain, poke, massage or wrap the flap at home; a video visit cannot drain one. An ear-tip cut that keeps bleeding needs an emergency vet.

What can I do at home tonight?

Tonight, a dog owner can look at and smell both ears, take clear photos, keep the dog from scratching with a cone, gently dry the outer ear after water, and put nothing into the ear canal until a vet has checked it.

Do not clean the ears right before a vet visit, and use no human medicines, ear drops or wax removers unless a vet approves them. The Merck Veterinary Manual warns that even products that are safe in healthy ears can irritate inflamed ones.

Skip this	Why
Vinegar	Swelling
Oils	Irritates
Peroxide	Irritates
Rubbing alcohol	Irritates
Old or shared drops	Hearing risk
Cotton swabs	Pushes wax
Wax removers	Vet first

If your dog swallowed ear cleaner or medicine, call a poison line listed above or an emergency vet.

Which dogs shake their heads most?

Dogs with floppy or hairy ears, dogs that swim or are bathed often, and dogs with allergies are more prone to the ear trouble that makes a dog shake its head, because their ear canals stay warm, damp or inflamed.

RexVet's visit data show: "Ear problems drove nearly half (48%) of RexVet visits for Goldendoodles, about three times the rate for all dogs." See why Goldendoodles get so many ear infections.

When a video visit helps

A video visit can help decide how soon a dog's head shaking needs a clinic and can review an ear problem a clinic has already diagnosed, but a first ear problem, a new flare, a sore ear or a suspected grass seed needs an in-person exam.

RexVet, a nonprofit online vet service, serves pets located in Florida, New York and Virginia by video visit, and your dog must be in one of those states during the visit. You can book a $64.99 live video visit with a licensed RexVet vet, a veterinarian licensed in your pet's state; live slots run about 8 AM to 11 PM ET. A video visit fits:

• Deciding how soon shaking with itch, redness, wax or a smell needs a clinic.
• Shaking after a bath, swim or groom that has not settled, with no head tilt.
• Itchy ears plus licked paws or an itchy belly.
• A diagnosed ear problem that keeps coming back.
• A filmed head-bobbing episode.
• Timing for a puffy ear flap.

The veterinarian can look at the ear flap and canal opening on camera and in your photos, watch your video and say how soon your dog needs hands-on care, but a camera cannot see the eardrum or check discharge under a microscope. No prescription is promised; any medicine is the veterinarian's decision after the visit, and many FDA-approved dog ear medicines are labeled for use only after a vet confirms the eardrum is intact, so ear medicine after a video visit depends on a recent in-person ear exam. Florida s.474.2021 limits telehealth-only prescribing to FDA-approved animal drugs used on-label, for up to 14 days (1 month for products labeled solely for fleas and ticks), with no renewal without an in-person exam and no human-labeled, controlled or compounded anti-infective drugs; federal rules (21 CFR 530.3) require an in-person vet relationship for off-label or human-drug use. Virginia allows the exam to be electronic; New York's telehealth prescribing rules are not settled. A pharmacy transfer fee applies if a prescription is sent to an outside pharmacy.

Not a fit for video: a sudden head tilt, loss of balance, circling, flicking eyes, a drooping face, severe ear pain or bleeding from the ear canal, including a tilt or sudden deafness after ear drops or a cleaning. Go to the nearest emergency vet now. A suspected grass seed needs an in-person vet the same day, and a possible toxin means a poison line and an emergency vet. Pawing at the mouth, gagging or drooling with head shaking can mean something is stuck in the mouth or throat: see a vet now, and go to an emergency vet now if breathing is hard.

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Frequently Asked Questions

Why does my dog keep shaking his head like there's water in his ear?

Usually because something is irritating the ear canal, such as an infection, an allergy, water or a stuck grass seed. If your dog has not been wet, water is not the cause. Sudden shaking or pawing at one ear after grass needs a vet the same day; shaking past a day, or with a smell, discharge or scratching, needs a vet soon; a sudden head tilt, lost balance, severe ear pain or bleeding from the ear canal means an emergency vet now.

My dog keeps shaking his head and scratching one ear. Should I take him to the vet tonight?

Go to an emergency vet now if you see a sudden head tilt, lost balance, flicking eyes, a drooping face, severe ear pain (crying or not letting anyone touch the ear) or ear canal bleeding. Sudden shaking or pawing after grass, or pus from the ear, needs a vet the same day (your vet today, or an emergency clinic if no clinic can see your dog today). Itch, redness or a smell alone needs a vet soon.

Should I put vinegar or oil in my dog's ear?

No: put nothing in a dog's ear canal until a vet has checked it, including vinegar, oils, peroxide, rubbing alcohol or old drops. The Merck Veterinary Manual says vinegar mixtures can worsen swelling and secretions. A head tilt or sudden deafness after anything goes in the ear means an emergency vet now.

Can head shaking make my dog's ear flap swell up like a balloon?

Yes: hard, repeated head shaking can break a blood vessel in a dog's ear flap and cause an aural (ear) hematoma. A balloon-like ear flap in a dog that is eating and acting normally needs a clinic within 24 to 48 hours, or the same day if the ear is hot, splitting or leaking pus or the dog is off food or lethargic. Do not drain, poke or wrap it at home.

Is my dog's head bobbing a seizure?

Not always: an alert dog's head bob that stops when distracted may be a head tremor, but film it and show a vet. In a 2015 Veterinary Medicine International study of 291 dogs with idiopathic head tremor, 93% were alert or responsive during episodes. Go to an emergency vet now if the dog does not respond to its name or cannot be distracted, the whole body shakes, or it paddles, collapses, loses bladder control, has a head tilt or loses balance. If it may have eaten something toxic, call ASPCA Animal Poison Control at (888) 426-4435 (a consultation fee may apply) or Pet Poison Helpline at (855) 764-7661 (a per-incident fee applies) and head to an emergency vet.

Can an online vet help with my dog shaking his head in Florida, New York or Virginia?

Partly: a licensed RexVet vet can review head shaking by video, but a first ear problem or a suspected grass seed needs an in-person exam. For a dog located in Florida, New York or Virginia during the visit, the veterinarian can look at the ear flap on camera, watch a video of the shaking and say how soon a clinic is needed for the eardrum check, object removal or hematoma drainage. Any medicine is the veterinarian's decision and never guaranteed: Florida limits telehealth-only prescriptions to FDA-approved animal drugs used as labeled, for up to 14 days (1 month for products labeled solely for fleas and ticks), with no renewal without an in-person exam and no human-labeled, controlled or compounded anti-infective drugs; Virginia allows the exam to be electronic; New York's telehealth prescribing rules are not settled. A sudden head tilt, lost balance or severe ear pain needs an emergency vet, not video.