Why does my dog have scabs and crusts on the ears?
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Overview
Scabs and crusts on a dog’s ears can happen for a few different reasons. Common causes include mites, scratching from irritation, allergies, skin infection or damage from rubbing. It’s not possible to tell the exact cause just by looking, but checking a few details at home can help you decide what to do next.
Things To Check
1. Check whether one ear or both ears are affected, and whether the problem is on the ear flap, the edges, or inside the ear.
2. Look for redness, swelling, heat, a bad smell, discharge or broken skin.
3. Notice whether your dog is scratching, head-shaking, rubbing their ears or seeming bothered when the ears are touched.
4. Check for hair loss, thickened skin, dirt, flaky skin or tiny dark specks around the ears.
5. Think about whether it started after grooming, a new shampoo, outdoor play, boarding, contact with other animals or a change in diet.
6. See if there are scabs or crusts anywhere else, such as the face, neck, paws or belly.
7. Make a note of whether the problem is getting worse, staying the same or coming and going.
Common Causes
Mites are a common reason for crusting, scabs and irritation, especially if your dog is scratching a lot or has other itchy patches. Ear mites and some skin mites can both cause strong discomfort.
Simple irritation is another possibility. This can happen after scratching, rubbing on bedding, harnesses or grass, or after grooming and washing.
Allergies are also common and can affect the ears as well as the skin on the face, paws and body. Dogs with allergies often rub and scratch, which can then lead to scabs and crusts.
Skin infection can also cause crusting, especially if the skin is red, sore or has a smell. Sometimes an infection starts after the skin has been scratched or irritated for a while.
Less commonly, scabs may be linked to other skin conditions or a reaction to something in the environment. If the ear changes keep returning, it’s worth getting them checked.
What To Do
Try to keep your dog from scratching or rubbing the ears as much as possible, as that can make the skin more damaged. Keep the area clean and dry, and avoid using human creams, oils or home remedies on the ears.
Take a few photos and monitor the changes over a couple of days, especially if the scabs are mild and your dog otherwise seems well. Make a note of any triggers, such as walks, grooming or time outdoors.
If your dog has been in contact with other animals, keep an eye out for similar symptoms in any pets at home. If you use bedding, collars or grooming tools regularly, keeping them clean may help with general skin hygiene.
When To Contact A Vet
Book a vet appointment if the ears are very sore, swollen, smelly or oozing, if your dog is scratching constantly, or if the scabs are spreading or not improving. You should also get advice sooner if your dog seems unwell, has crusts elsewhere on the body, or you suspect mites or infection.
Products That May Help
For dogs with ear scabs, crusts or general skin and coat concerns, a simple grooming and cleaning routine may help support day-to-day care and make it easier to keep an eye on changes.
Related Questions
Why is my dog shaking their head and scratching their ears?
Can mites cause scabs on a dog’s ears?
When should I get crusty ears checked by a vet?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.