Why Do My Dog's Ears Smell? Causes and How to Keep Them Clean

If you lean in for a cuddle and catch a whiff of something off from your dog's ears, you're not alone — smelly ears are one of the most common things owners ask about. A little odor is usually manageable at home, but it's worth knowing what's normal and what isn't.

What causes smelly dog ears

The most common everyday cause is a buildup of wax, dirt, and trapped moisture. Dogs with floppy ears (like Cockers and Basset Hounds), dogs that swim, and dogs in humid climates are especially prone because warm, damp ears trap odor. Routine cleaning usually keeps this in check.

A simple at-home ear-cleaning routine

Once a week, apply a few drops of a gentle, alcohol-free ear cleaner into the ear, massage the base for a few seconds to loosen debris, then let your dog shake and wipe away the residue with a soft cotton pad. Keeping the routine consistent prevents most everyday buildup and odor.

Tip: bundle ear checks into one weekly grooming session — a few minutes with a self-cleaning slicker brush first relaxes most dogs and gets fur, ears, and coat handled in one sitting.

What NOT to do

• Don't use cotton swabs deep in the ear canal — you can push debris further in.
• Don't use alcohol-based products on sensitive ears.
• Don't over-clean — once a week is plenty for routine maintenance.

When it's more than just odor — see your vet

Routine cleaning handles everyday wax and smell. But a strong, persistent odor along with redness, swelling, dark discharge, head-shaking, or your dog pawing at the ear can signal an infection or mites — and those need a veterinarian, not just cleaning. When in doubt, get it checked.

FAQ

How often should I clean my dog's ears?
About once a week for routine maintenance, or as your vet recommends for ear-prone breeds.

Can ear cleaning cure an infection?
No. Cleaning is for everyday maintenance and odor. Infections need veterinary treatment.

Keep ears fresh between grooming — see Leevar's grooming & care range.