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My dog has a large, red, swollen ear that smells bad. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | spayed | 11 years and 8 months old | 80 lbs

I just noticed a very large red swollen spot in my dogs ear. It doesn't look like any of the pictures i found. It also has a bad smell.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on May 14th, 2018

If the ear looks like a small pillow, it could be a hematoma. Blood filling the ear will make it look puffy. The odor can be due to a severe ear infection. Excessive head shaking can cause a hematoma. Treatment is twofold. First, drain the ear or correctly via surgery then treat the underlying ear infection. Daisy will need to be examined by your veterinarian for confirmation and treatment. If it is not a hematoma, your veterinarian should be able to determine what is causing the condition after an exam and diagnostics.

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