Cauliflower Ear in Dogs: What is It & How to Help Your Dog

Score for Seniors:
Activity Level:
Weight: Pounds


This article was updated on April 29th, 2023

Cauliflower Ear in Dogs is a common condition that can affect many breeds and results in great discomfort for your dog. Not only that, it looks very unsightly and can be a source of embarrassment for pet owners. I see this issue in my clinic regularly; while the condition can look dramatic, it’s generally easy to treat but even easier to prevent! In this article, we will go over the causes of Cauliflower Ear in Dogs, as well as treatments and prevention tips for owners.

What Is a “cauliflower ear” in dogs?

A “cauliflower ear” is a bulging, swollen appearance of the pinna (or outer flap of the ear) that can occur in dogs due to trauma or infection. The condition is also referred to as an aural hematoma, which occurs when fluid collects between the cartilage and the skin of the ear. This often results in the ear becoming swollen and disfigured, resembling a cauliflower, hence the name.

Cauliflower ear is most commonly seen in larger-eared breeds such as Cocker Spaniels, Setters, German Shepherds, and Golden Retrievers. However, any breed of dog can be affected.

How does the cauliflower ear form?

When a dog’s ear is injured or traumatized, fragile blood vessels in the ear can rupture resulting in the accumulation of blood in the space between the skin and the cartilage. If left untreated, this can lead to the formation of a hematoma – a hard swelling of clotted blood – in the ear. This causes the ear to become disfigured and may cause severe discomfort for your pet.

Though the condition is usually caused by trauma, such as being scratched or bitten on the ear, other causes can result in a cauliflower ear. Allergies, mites, ear infections and even over-cleaning can result in the dog’s ear becoming irritated and swollen. Certain breeds with heavy ears are also predisposed to developing this condition.

Is a cauliflower ear the same as an ear hematoma?

The terms cauliflower ear and an ear hematoma are used interchangeably, and although they refer to the same condition, a cauliflower ear is technically what results if an ear hematoma is inadequately treated. An ear hematoma occurs when fluid collects between the cartilage and the skin of the ear, if left untreated the ear can become permanently disfigured resulting in a crinkled cauliflower-like appearance.

What does a cauliflower ear look like in dogs? (with Pictures)

A cauliflower ear can range from mild to severe. Mild cases may appear as a small, swollen bump in the ear while more extreme cases can cause the ear to become severely disfigured and wrinkled. The ear may also appear red or inflamed, and your pet may be in pain or discomfort. Over time, the swelling can become more pronounced, and the ear may begin to appear distorted or misshapen, giving it a cauliflower-like appearance.

Hematoma of the ear flap on a black labrador
ear hematoma on a dog (closeup picture) before the surgery
close up of the inside of a dog's ear showing cauliflower apperance as a result of an ear hematoma

The size and shape of a cauliflower ear can vary depending on the severity of the injury and how long it has been left untreated. In some cases, the swelling may be limited to one area of the ear, while in other cases, the entire ear may be affected.

Do you need your vet to treat a cauliflower ear hematoma?

Yes, an ear hematoma in a dog requires prompt veterinary attention. If left untreated, an ear hematoma can cause pain, discomfort, and potential complications such as infection or scarring. The earlier the condition is caught and treated, the better chance of a successful outcome.

Your vet may recommend draining the fluid from the ear and/or surgically removing the hematoma. If surgery is deemed necessary, your vet may recommend implanting a drainage tube in the ear to help ensure that the hematoma does not return or form again.

When hematomas are left to heal alone, the blood will slowly clot and then eventually resorb. This can cause severe scarring, tissue necrosis, and deformation of the ear flap. Severe deformation of the earflap can cause a permanent blockage in the ear and deafness. This also makes subsequent ear issues harder to medicate and treat later on.

Is there any home remedy I can try at home first?

Yes, there are some home remedies you can try before seeking veterinary attention. However, you should keep in mind that ear hematomas are often secondary to something that has probably been bothering your dog longer than the hematoma itself: problems like ear infections, food allergies, and foxtails are often there for months before the hematoma appears. It’s important to have your dog evaluated before you attempt at-home treatment. There are a few remedies you can try at home after discussing them with your veterinarian. To learn more, read our article: Home Remedies to Help Dogs with Ear Hematomas, by Dr Guise.

Do cauliflower ears sometimes go away on their own?

Generally speaking, ear hematomas do not go away on their own without treatment. In some cases, the fluid may be reabsorbed by the body and the swelling may reduce without intervention; however, this is not a guarantee and does not address the underlying problem that caused the hematoma to form in the first place. In addition, the ear may be permanently disfigured as a result of the hematoma. For these reasons, it is important to seek veterinary attention to prevent further complications.

Top signs that of cauliflower ears and ear hematomas in Dogs

Here are some signs that your dog may have an ear hematoma:

●    Swelling: The ear may appear swollen and/or distorted, with a cauliflower-like appearance.

●    Discharge: You may notice bloody or pus-like discharge from the ear, often foul-smelling.

●    Pain: Your dog may be uncomfortable or in pain, especially when touching or manipulating the ear.

Disclaimer: This content is not a substitute for veterinary care. Always consult with your vet for health decisions. Learn more.

●    Head shaking: You may notice your dog shaking their head or holding it to one side due to discomfort.

●    Hearing loss: In some cases, the hematoma may be blocking the ear canal, causing hearing loss.

●    Redness: The ear may appear red or inflamed.

●    Scratching or rubbing: Your dog may scratch or rub at their affected ear in an attempt to relieve the discomfort.

If you notice any of these signs, it’s important to take your dog to the veterinarian: Cauliflower ear can be a painful and uncomfortable condition for your dog, so it is important to get them evaluated by a veterinarian as soon as possible. Your vet can help you determine the best course of action for treating your dog’s cauliflower ear and helping them heal quickly.

Veterinary treatments

woman inspecting a dog's year with veterinary tool

The treatment for cauliflower ear in dogs typically depends on the severity and extent of the condition. Here are some common treatment options that your veterinarian may recommend:

●    Draining the fluid: Your vet may recommend draining the fluid from the ear using a needle or scalpel blade. This can help reduce the swelling and discomfort associated with the condition.

●    Antibiotics: If your dog’s cauliflower ear is caused by an ear infection, your veterinarian may prescribe antibiotics to help clear this up. These may be in the form of oral tablets or ear drops.

●    Steroids: Your vet may recommend steroid injections to reduce inflammation and promote healing.

●    Surgery: In some cases, surgery may be recommended to remove any blood clots and dead tissue, reduce scarring, and restore the ear’s natural shape. The ear is often stitched flat so that it can’t fill with blood again.

●   Pain management: Pain medications may be recommended to help manage your dog’s discomfort.

●   Head bandage: To help keep the affected ear flat and promote healing, your vet may recommend a head bandage or ear hematoma wrap. This should be worn until the hematoma has healed.

hematoma wrap

It’s important to note that prompt treatment is essential in cases of cauliflower ear, as the condition can become more difficult to treat the longer it goes untreated. Learn more about treatment options with our veterinarian article: ”Dog Ear Hematomas: An Owner’s Guide”.


Can Ear Hematomas Be Fatal to Dogs? 

An ear hematoma is unlikely to kill your dog, but it may be immensely painful. If left untreated, it can continue for months. Learn more with our article: Can Ear Hematomas Be Fatal to Dogs?

My Dog’s Ear Hematoma Popped: What Should I Do? 

It is unusual for an ear hematoma to pop, but it can happen. Your dog probably felt some relief, because the pressure from the fluid build-up has been removed, and the blood can drain. Since two-thirds of hematoma cases have an underlying cause like an ear infection or ear mites, your dog may still be uncomfortable. Your veterinarian should still see your dog if the hematoma pops to help treat the underlying condition. Learn more: “What If My Dog’s Hematoma Popped? What Should I Do?

Related posts about ear hematomas

hematoma symptoms on dog's ear Home Remedies to Help Dogs with Ear Hematomas, by Dr Guise - You’ve found a crazy-looking lump on your dog’s ear and are wondering what you can do to help your poor… [...]
hematoma symptoms on dog's ear Dog Ear Hematomas: A Dog Owner’s Guide - It can be alarming to rub your dog’s ear and feel a puffy, fluid-filled ear that once was soft and… [...]
ear inspection of a labrador My Dog’s Ear Hematoma Popped: What Should I Do? - In my practice, we see dogs with ear hematomas at least once a month or more. It is incredibly rare… [...]
ear wrap for hematoma on a dog Dog Ear Hematoma Wraps: A Dog Owner’s Guide - Image credit: No Flap Ear Wrap Manufacturer. Overnight your dog’s ear ballooned up into a hot, squishy mess known as… [...]


  • Dr Alex Crow, Veterinary Surgeon

    Alex Crow, VetMed MRCVS, is an RCVS accredited Veterinary surgeon with special interests in neurology and soft tissue surgery. Dr Crow is currently practicing at Buttercross Veterinary Center in England. He earned his degree in veterinary medicine in 2019 from the Royal Veterinary College (one of the top 3 vet schools in the world) and has more than three years of experience practicing as a small animal veterinarian (dogs and cats).

Disclaimer: This website's content is not a substitute for veterinary care. Always consult with your veterinarian for healthcare decisions. Read More.

Be the first to comment

Leave a Reply

Your email address will not be published.


This site uses Akismet to reduce spam. Learn how your comment data is processed.