A dog with a visibly swollen ear, illustrating an aural haematoma condition, highlighting the importance of veterinary care.

What are aural haematomas of dogs and cats?

Pet HealthPublished Jul 7, 2025Updated Oct 20, 2025
Dial A VetBy Dial A Vet

Discover what aural haematomas are in dogs and cats, their causes, symptoms, and treatment options to keep your furry friends comfortable and healthy!

Have you noticed your dog or cat shaking their head excessively or scratching at their ear? Maybe one ear looks swollen or feels oddly soft, almost like a water balloon. These could be signs of an aural haematoma, a common ear issue in pets that can be uncomfortable and concerning. Let’s dive into what you need to know to help your furry friend feel better.

⚠️ What to Watch For

An aural haematoma occurs when blood collects between the layers of the ear flap (pinna). This creates a visible swelling, often on one side of the ear. While this condition is not life-threatening, it can cause significant discomfort if left untreated. Here’s what to look out for:

  • Swelling on the ear flap, which may feel soft or fluid-filled
  • Head shaking or ear scratching
  • Redness or warmth in the affected area
  • Changes in ear position (e.g., the ear drooping)
  • Signs of pain or irritation when you touch the ear

If you notice any of these symptoms, it’s essential to act promptly to prevent the condition from worsening or causing permanent ear deformity.

🔍 Possible Causes

Aural haematomas are typically the result of trauma or irritation to the ear. When pets vigorously shake their head or scratch their ear, small blood vessels in the ear flap can rupture, leading to blood accumulation. Common causes of this irritation include:

  • Ear infections (bacterial, yeast, or parasitic)
  • Allergies causing itchy skin
  • Foreign objects lodged in the ear canal
  • Ear mites (more common in cats)
  • Injury to the ear during play or fights

While some pets may be more prone to aural haematomas due to underlying health issues, any dog or cat can develop one if their ears are irritated enough to trigger excessive scratching or shaking.

✅ What You Can Do at Home

While aural haematomas require veterinary care to resolve fully, there are steps you can take at home to provide temporary relief and prevent further damage:

  • Gently clean your pet’s ears with a vet-approved ear cleaner to remove debris or discharge.
  • Prevent further trauma by discouraging scratching or head shaking. An Elizabethan collar (E-collar) can help protect the ears.
  • Inspect the ear for signs of infection, such as foul odor or discharge, and note any unusual findings to share with your vet.

Remember, home care is not a substitute for professional treatment. Aural haematomas often require medical intervention to drain the blood and address the underlying cause.

💡 When to Call a Vet

If your pet shows signs of an aural haematoma, it’s important to contact your veterinarian as soon as possible. Here’s why:

  • Untreated haematomas can lead to permanent ear deformity (cauliflower ear).
  • The underlying cause, such as an ear infection or allergy, needs to be diagnosed and treated to prevent recurrence.
  • Your vet can provide effective pain relief and prevent complications.

Depending on the severity of the haematoma, treatment options may include draining the fluid, surgical correction, or using medications to reduce inflammation. Your vet will also address the root cause to ensure your pet’s long-term comfort and health.

FAQs

Q: Can an aural haematoma go away on its own?
A: In rare cases, small haematomas may resolve without treatment, but they often lead to scarring or deformity. It’s best to consult your vet to ensure proper healing and address the underlying cause.

Q: Is surgery always required for an aural haematoma?
A: Not always. Treatment depends on the size and severity of the haematoma. Your vet may recommend draining the fluid or using a less invasive approach in mild cases, but surgery is often the most effective solution for larger or recurring haematomas.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

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