Why Does My Cat Have Ear Problems, Discharge or Irritation?
If your cat is scratching at their ears, shaking their head, or you have noticed discharge, irritation or a change in the appearance of the ears, it can be difficult to determine what is causing the problem. While mild ear irritation can occur, ongoing or recurrent ear problems usually indicate an underlying condition affecting the ear or skin that requires further investigation.

Common Questions You May Be Asking
Ear disease in cats can be more subtle than in dogs and is often associated with parasites, infection or underlying skin disease, rather than occurring in isolation. Identifying the underlying cause is important to guide appropriate treatment and achieve more effective, long-term control.
If your cat has ear problems, you may be asking:
- Why is my cat scratching its ears?
- Why is my cat shaking its head?
- Why do my cat’s ears look dirty or have discharge?
- Does my cat have an ear infection?
- Can ear mites cause ear problems in cats?
- Why do my cat’s ears keep getting irritated?
- Could this be related to a skin condition or allergy?
- When should I be concerned about ear problems?
These are some of the most common concerns we see, and they are often linked to the same underlying causes.
What Causes Ear Problems in Cats?
Ear Problems are a symptom, not a diagnosis. Identifying the underlying cause is key to effective treatment.
The most common causes include:
- Allergic skin disease (cat allergies) → Learn more
Some cats develop ear problems as part of a broader skin condition, even if signs elsewhere on the body are subtle. - Parasites → Learn more
Ear mites are a common cause of ear irritation in cats, particularly in younger animals, and may lead to discharge and discomfort. - Ear disease and ear infections → Learn more
Ear inflammation is commonly associated with allergies and may be a major contributor to discomfort. Bacterial or yeast infections may develop when the ear becomes inflamed, often secondary to another underlying condition. - Less common or more complex causes
Less commonly, ear problems may be associated with polyps, foreign material or other ear conditions.
In many cats, more than one of these factors may be involved, particularly where signs are ongoing or recurrent.
What Do Ear Problems Look Like?
Ear problems in cats are not always obvious. Signs can include:
- Scratching at the ears
- Head shaking
- Dark discharge or debris in the ears
- Redness or inflammation
- Sensitivity when the ears are touched
- Changes in grooming behaviour
- Subtle behavioural changes
Some cats show only mild or intermittent signs. Ear disease in cats can be easy to miss, particularly in early stages.
Why Does It Keep Coming Back?
Ear problems may recur when the underlying cause has not been fully identified or controlled. In many cats, parasites, infection or skin disease can lead to repeated irritation.
This may result in:
- Recurrent ear irritation
- Ongoing or intermittent discomfort
- Temporary improvement followed by relapse
Without identifying the cause, ear problems are likely to persist or recur over time.
When Should You Seek Help?
If your cat is showing these signs, the first step is to consult your primary care veterinarian, who can assess your cat and begin initial treatment.
Further investigation or referral may be recommended if your cat:
- Has ongoing or recurrent ear irritation
- Has discharge, debris or changes in the ears
- Is scratching, head shaking or showing discomfort
- Is not improving with initial or routine treatment
- Has subtle but persistent ear-related signs
In these cases, specialist dermatology assessment starting with a dermatology consultation can help identify the underlying cause and guide more effective, long-term management.
Early assessment can help prevent progression and reduce ongoing discomfort, particularly where underlying disease is present.
Take the Next Step for Your Pet’s Care
If your cat’s ear problems are ongoing or not improving, a consultation can help identify the underlying cause and guide effective, long-term management. Our team will work with you to develop a clear, practical plan tailored to your pet’s condition.
Explore our services, get to know our team or find our nearest clinic location.
When you’re ready, arranging your pet’s first appointment with us is just a few steps away.
Frequently Asked Questions
Can my cat have ear disease without obvious symptoms?
Yes. Some cats show very subtle signs such as mild grooming changes or occasional head shaking. Ear disease in cats can be present even when signs are not obvious, which is why it is sometimes only identified on examination.
Why do my cat’s ears look dirty?
Dark debris or discharge in the ears may be associated with mites, infection or inflammation. Changes in the appearance of the ear canal often indicate an underlying issue rather than normal variation.
Is ear disease in cats usually serious?
Many cases are manageable, but ongoing or untreated ear disease can lead to discomfort and more complex problems over time, particularly if the underlying cause is not addressed.
Can ear problems be linked to other skin conditions?
Yes. Some cats develop ear disease as part of a broader dermatological condition. Ear problems may occur alongside or reflect underlying skin disease, even if signs elsewhere are subtle.