Ruptured Eardrum in Dogs: Signs, Causes, and Treatment

Name: Ruptured Eardrum in Dogs: Signs, Causes, and Treatment
Creator: Dr. Zubair Khalid

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-10-03

A ruptured eardrum in dogs means the thin membrane separating the outer ear canal from the middle ear has a tear or hole. Owners often notice head shaking, ear scratching, pain when the ear is touched, or a discharge that will not clear up. Recognizing the signs of dog ruptured eardrum early matters because an open eardrum lets infection and debris reach the middle ear, where nerves for hearing, balance, and facial movement run.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

The most common route to a torn eardrum is an ear infection or a foreign object in the canal that damages the membrane [1].
Head shaking, ear scratching, rubbing the ear on the floor, head turn toward the sore side, pain, and discharge are the classic clues [1].
Facial paralysis, a head tilt, trouble standing, or uncontrolled eye movements mean the problem has reached the middle or inner ear and needs urgent care [1].
Never put anything into a dog's ear canal, including cotton swabs or leftover ear drops, until a veterinarian has looked at the eardrum.
Recurrent or chronic external ear infections raise the odds that the middle ear is involved too [1].

What a Ruptured Eardrum Looks Like and What Is Normal

A healthy eardrum sits at the end of the ear canal. It is a thin, pearly membrane that vibrates when sound hits it. You cannot see it from the outside, and you should not try. Only a veterinarian with an otoscope can view it safely.

When the membrane tears, the signs usually start in the outer ear and then spread. A dog with middle ear inflammation often shakes the head, scratches at the ear, rubs the ear along the floor, and holds the head turned toward the affected side [1]. The ear is typically painful, and there may be discharge [1].

Some of these behaviors are normal in small doses. A dog might shake after a bath or scratch a random itch once or twice a day. What points to a real problem is repetition, one-sidedness, and pain. If your dog pulls away when you touch one ear but not the other, that asymmetry is a signal.

You may also notice a smell, a dark or yellow discharge, redness, or swelling in the canal. These overlap with a plain outer ear infection, which is why owners often cannot tell the difference at home. That is expected. The eardrum sits out of sight, and the visible signs of outer and middle ear disease look alike [1].

Main Causes of Dog Ear Drum Rupture

Most ruptured eardrums in dogs trace back to something that damages the canal or the membrane itself. Middle ear inflammation usually comes from infection spreading out of the external canal, or from a foreign object that gets into the ear canal and tears or punctures the eardrum [1]. In rare cases, infection reaches the middle ear through the bloodstream [1].

Trauma is another major route. In one case series of ear canal tears and avulsions in dogs and cats, acute trauma was the most common cause, accounting for 17 of 24 cases [2]. Those injuries involved the external canal, and many required surgery.

Cause	Typical clues	How urgent
Ear infection spreading inward	Long or repeated ear infections, discharge, odor, head shaking, pain when the ear is touched [1]	See a vet within a day or two, sooner if pain is severe
Foreign object in the canal	Sudden violent head shaking, pawing at one ear, acute pain, often after time outdoors	Same day
Trauma (bite wound, car accident, rough handling)	Visible wound, swelling, blood, a tear or avulsion of the canal found on exam [2]	Emergency
Self-trauma from scratching	Raw skin, bleeding at the ear flap or canal opening, constant scratching	Same day if bleeding will not stop
Spread through the bloodstream	Rare, often with systemic illness and no obvious ear wound [1]	Emergency

Brachycephalic breeds (dogs with short, flat faces) deserve a special mention. Middle ear abnormalities show up frequently in these dogs because of their anatomy, and breed popularity may affect how often this is seen [3]. If you own a French Bulldog, Pug, Boston Terrier, or similar breed, ear checks should be part of routine visits.

Signs of Dog Ruptured Eardrum That Mean Emergency

Some signs point to the inner ear or beyond, and those cannot wait.

Facial paralysis. Nerves to the face pass through the middle ear, so dogs with middle ear inflammation can lose the ability to move the face, eyes, or eyelids on the same side as the affected ear [1]. You might see a drooping lip, an eye that will not blink, or food falling out of the mouth.
Head tilt toward the sore side. This is typical of inner ear involvement [1].
Severe coordination problems. Dogs may struggle to rise and walk, or stagger as if drunk [1].
Uncontrollable eye movements. Rapid flickering of the eyes that the dog cannot control points to inner ear or brain involvement [1].
Signs of brain involvement. If infection spreads to the brain, other neurological signs can appear [1].

Any of these findings means you should call an emergency clinic or your veterinarian right away. Do not wait to see if it improves overnight.

What You Can Safely Do at Home While You Wait

Your job at home is to keep your dog comfortable and avoid making the injury worse. Do not put anything into the ear canal. No cotton swabs, no homemade rinses, no leftover prescription drops from a previous infection. If the eardrum is torn, fluid can pass into the middle ear, and some ear cleaners and medications can irritate or damage middle ear structures.

Do not flush the ear. Do not try to pull out debris you can see, because you may push it deeper or tear the canal. If something is visibly stuck, leave it and let a veterinarian remove it.

What you can do:

Keep your dog from scratching. An Elizabethan collar (cone) is the safest option if your dog is pawing at the ear.
Gently wipe only the outer ear flap with a soft, damp cloth if there is discharge on the fur. Stay out of the canal.
Note the timing. Write down when signs started, which ear is affected, and what you have already tried.
Photograph the ear and any discharge so you can show your veterinarian how it looked at home.
Keep your dog indoors and calm. Avoid swimming, baths that soak the head, and dusty environments.

If your dog scratched the ear until it bled, that injury needs a veterinary look. You can read more about that specific problem in Dog Scratched Ear And Made It Bleed.

What Your Veterinarian Will Check and Test

The first step is almost always otoscopy, which means looking into the ear canal with a scope. Your veterinarian will check whether the eardrum is intact, torn, or hidden by swelling and discharge. In one study of ear canal tears and avulsions, an interruption in the canal's continuity was visible on otoscopy in 92% of cases [2].

If the canal is too painful or too swollen to examine, your dog may need sedation or anesthesia. This is common and not a sign that something went wrong.

Imaging often comes next. Computed tomography (CT) and magnetic resonance imaging (MRI) have improved middle and inner ear diagnostics a great deal over the past two decades [4]. Each has strengths. CT is more sensitive for showing involvement of the bulla wall (the bony chamber of the middle ear) and is better at detecting abnormal contents inside the tympanic bulla, and it is often easier for guiding tissue sampling [4]. MRI is clearly superior for showing soft tissue changes in the skull, head, meninges, brain, and nerves, and it is essential for characterizing material inside the bulla cavity and showing how far a middle ear infection has spread centrally [4].

Blood work may be part of the workup. C-reactive protein, a marker of inflammation, has been studied in dogs with ear disease, and in one small study no healthy dog had an elevated value while some dogs with otitis did [5]. This kind of test supports the diagnosis but does not replace imaging.

If your dog has chronic or recurrent outer ear infections, your veterinarian may suspect the middle ear is involved even without dramatic new signs [1]. That is one reason recurring ear problems deserve a full workup instead of another round of drops. For background on how these infections behave, see Dog Ear Infection Signs Treatment and Dog Ear Infection Symptoms And Treatment.

Treatment for a Dog Ear Drum Rupture

Treatment depends on what caused the tear and how deep the problem goes. Your veterinarian will build a plan around your dog's exam, imaging, and history. No single protocol fits every dog.

If infection is the cause, the goal is to clear it from the canal and the middle ear. Your veterinarian will choose medications that are safe when the eardrum is not intact, because some ear products should not be used on a perforated membrane. The dose and drug are calculated from your dog's weight and health, so never reuse a prescription written for a different problem or a different dog.

If a foreign object or trauma is the cause, removal or repair may be needed. In the case series of canal tears and avulsions, treatment ranged from primary repair of the canal to more extensive surgeries such as vertical ear canal ablation or total ear canal ablation with lateral bulla osteotomy [2]. Those are serious procedures reserved for severe damage. Many dogs in that series were discharged, though six died or were euthanized within the first 14 days after presentation, which shows how serious these injuries can be [2].

If the inner ear or brain is involved, treatment becomes more intensive. Middle ear inflammation can progress to inner ear inflammation, which can cause balance loss and deafness [1]. When infection spreads to the brain, other neurological signs can occur [1]. These cases may need hospitalization, intravenous medications, and close monitoring.

If hearing loss is present, it may be temporary or permanent depending on the damage. Your veterinarian can discuss what to expect for your dog's specific situation.

Small perforations sometimes heal on their own, but that is not something you can judge at home. A study in chinchillas found that experimentally created eardrum perforations persisted for at least four weeks in most cases and up to twelve weeks in many [6]. Animal models are not a perfect match for pet dogs, but they show that these injuries do not always close quickly.

Prevention and Monitoring

You cannot prevent every accident, but you can lower the odds of an eardrum rupture.

Treat ear infections fully. Finish the course your veterinarian prescribes and return for the recheck. Recurrent outer ear infections suggest the middle ear may be involved [1].
Keep the canal dry. Dry your dog's ears gently after swimming or bathing. Do not push anything into the canal.
Check ears weekly. Lift the flap, look at the opening, and sniff. Early redness or odor is easier to treat than a chronic infection.
Ask about breed risk. If you have a brachycephalic dog, talk with your veterinarian about how often the ears should be examined, since middle ear abnormalities are common in these breeds [3].
Prevent trauma. Use secure leashes and carriers, and keep dogs away from situations where bite wounds to the head are likely.
Watch for mineral changes on imaging. Para-aural mineralization, a finding on head CT between the tympanic bulla and nearby structures, was identified in 15 of 1,833 canine head CTs in one study, and 87% of those dogs had concurrent tympanic bulla disease compared with 43% of controls [7]. This is a rare imaging finding, not something you can see at home, but it shows how much the middle ear region can change with chronic disease.

If your dog has repeated ear problems, ask your veterinarian whether imaging is warranted. CT has high sensitivity for diagnosing outer ear disease compared with otoscopy, at 98.2%, though specificity was lower at 60.0% in one study [8]. That means imaging is good at catching disease but can also flag changes that need context from the full exam.

Limitations and When to Contact a Veterinarian

This article cannot tell you whether your dog's eardrum is torn. Only a veterinarian can examine the membrane and decide on treatment. Individual cases need a veterinarian, and the timing below is a guide, not a rule.

Contact a veterinarian the same day if you see:

Sudden, severe ear pain or violent head shaking
Discharge, bleeding, or a bad smell from one ear
A wound or swelling near the ear
Your dog scratching one ear constantly
No improvement after starting prescribed ear medication

Go to an emergency clinic now if you see:

Facial drooping, an eye that will not blink, or a drooping lip [1]
A head tilt with staggering or trouble walking [1]
Uncontrolled eye movements [1]
Collapse, confusion, or other neurological signs [1]
Bleeding that will not stop

Schedule a routine visit if you notice:

Mild, intermittent ear scratching
A history of repeated ear infections, even if the current episode seems mild [1]
Your brachycephalic dog has never had its ears thoroughly examined [3]

Frequently Asked Questions

Can a dog's ruptured eardrum heal on its own?

Sometimes a small perforation closes without surgery, but you cannot predict that from home. In an animal model, most created eardrum perforations were still present at four weeks and many persisted to twelve weeks [6]. Your veterinarian needs to look at the membrane and track healing over time.

Will my dog go deaf from a ruptured eardrum?

Hearing loss is possible, and it may be temporary or permanent depending on the damage. Middle ear inflammation can progress to inner ear inflammation, which can cause deafness along with balance loss [1]. Your veterinarian can assess hearing and give you a realistic outlook after examining your dog.

Is a ruptured eardrum painful for dogs?

Yes, ear disease involving the middle ear is usually painful [1]. Dogs often show this by shaking the head, scratching, rubbing the ear on the floor, or pulling away when the ear is touched [1]. Pain control is part of veterinary treatment, and you should not give human pain medications without veterinary guidance.

Can I use ear drops if I think the eardrum is torn?

No. Do not put anything into the canal until a veterinarian has examined the eardrum. Some ear products are not safe when the membrane is perforated, and fluid can carry medication or debris into the middle ear. Your veterinarian will select a product that is appropriate for your dog's situation.

How do veterinarians find out if the eardrum is torn?

They start with otoscopy to look directly at the canal and membrane, and an interruption in the canal was visible this way in 92% of tear and avulsion cases in one study [2]. If the canal is too painful or swollen to see, sedation may be needed. CT or MRI can then show the middle ear and any spread beyond it [4].

References

Otitis Media and Interna (Middle and Inner Ear Infections) in Dogs - Dog Owners. Merck Veterinary Manual.
Causes, treatment and outcome of external ear canal tears and avulsions in cats and dogs: 24 cases (2008-2024). The Veterinary record, 2026.
Prevalence of incidental and causative otitis in 380 client-owned dogs undergoing brain magnetic resonance imaging for signs of vestibular and non-vestibular disease. Journal of veterinary internal medicine, 2026.
Imaging findings in otitis media and resulting secondary lesions in dogs and cats - an image essay. Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere, 2024.
Evaluation of plasma canine C-reactive protein concentrations in dogs with otitis media, healthy dogs and dogs with chronic otitis externa. Veterinary dermatology, 2024.
Searching for a Better Animal Model for Chronic Tympanic Membrane Perforation. Journal of personalized medicine, 2024.
Prevalence of mineralization in the para-aural region in dogs with and without ear disease. Frontiers in veterinary science, 2026.
Computed Tomographic Findings in Canine Otitis Externa. Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association, 2026.