What should I check if my dog’s ears smell bad?
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Overview
If your dog’s ears smell bad, it usually means there’s something going on in the ear canal or around the ear itself. Common causes include wax build-up, moisture, dirt, skin irritation or an ear infection, but a smell on its own doesn’t tell you exactly what it is.
Things To Check
1. Check whether the smell is coming from one ear or both, and whether it’s constant or only noticeable after walks, bathing or swimming.
2. Look for redness, swelling, heat, discharge, scabs or any broken skin around the ear opening.
3. Notice if your dog is scratching, rubbing, shaking their head or holding one ear differently.
4. Gently check whether the ear looks very dirty, waxy or damp, but don’t push anything into the canal.
5. See if your dog seems uncomfortable when you touch the ear or tilt their head to one side.
6. Think about any recent swimming, bathing, muddy walks or grooming that may have left moisture behind.
7. Check for a bad smell coming from the skin around the ear, not just inside it, since skin issues can sometimes be involved too.
Common Causes
The most common reason is wax and moisture building up in the ear, which can make a noticeable smell. Allergies and skin irritation are also common and can affect the ears as well as other parts of the body.
Ear infections are another common cause, especially if there’s redness, discharge or scratching. Less commonly, a foreign body, mites or a skin problem around the ear may be behind the odour.
What To Do
Keep a note of when you notice the smell and any changes in your dog’s behaviour or the appearance of the ear. If your dog has been wet, make sure the outer ear area is dried carefully after bathing or swimming.
Avoid using cotton buds or putting anything deep into the ear, as this can make things worse. If your dog tolerates handling, you can gently check the outer ear and keep the surrounding coat clean and dry.
If the smell is mild and your dog seems otherwise well, monitor it closely for a day or two. If it keeps coming back, gets stronger, or comes with discharge, soreness or scratching, it’s sensible to get it checked.
When To Contact A Vet
Contact your vet if the smell is persistent, the ear looks red or swollen, there’s discharge, your dog is in pain, or they’re shaking their head and scratching a lot. Vet advice is also sensible if the smell keeps coming back, affects one ear only, or your dog seems unwell.
Products That May Help
If your dog's ears are a bit smelly, gentle grooming and regular cleaning around the ear area may help support day-to-day hygiene as part of your routine.
Related Questions
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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.