Why is my dog getting patchy hair loss on the face, ears, or paws? | arlo.® Atlas
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Overview
Patchy hair loss on a dog's face, ears or paws can be caused by ringworm, but it can also be linked to allergies, parasites, bacterial skin infection, rubbing, or a reaction to something the dog has touched. Ringworm is one possibility, not the only one, so it's worth checking the skin closely before assuming the cause.
Things To Check
1. Look at the bald patches for a round shape, scaly skin, broken hairs or crusting.
2. Check whether the skin is red, swollen, sore, flaky or warm to the touch.
3. Notice if your dog is itchy, rubbing the face, shaking the head or licking the paws more than usual.
4. See whether the hair loss is spreading, changing quickly or appearing in more than one place.
5. Think about contact with other animals, shared bedding, grooming tools or places with lots of animal traffic.
6. Check whether anyone in the household has developed itchy, circular skin patches, as some skin infections can spread between animals and people.
7. Note any recent changes in diet, shampoo, bedding, walking routes or grooming products.
Common Causes
Ringworm is a common cause of patchy hair loss and often creates circular areas of broken hair or scaly skin. Despite the name, it is a fungal skin infection rather than a worm.
Allergies are another frequent cause, especially on the face and paws, where dogs often lick, rub or scratch.
Parasites such as mites or fleas can also cause local hair loss, along with irritation and skin damage from scratching.
Bacterial skin infections, contact irritation, and self-trauma from rubbing or licking can also leave patchy areas of missing hair.
What To Do
Keep a simple note of where the patches are, whether they're getting bigger and whether your dog seems itchy or uncomfortable.
Avoid using human creams, powders or household remedies on the skin unless your vet has advised them.
Wash bedding regularly and keep grooming tools clean if ringworm is a possibility, as this may help reduce spread in the home.
Try to stop your dog rubbing or licking the area if you can do so safely, because repeated friction can make the hair loss look worse.
If there are other pets in the home, keep an eye on them for similar patches or itching.
When To Contact A Vet
Speak to your vet if the patches are spreading, your dog seems uncomfortable, the skin is red or infected-looking, or the hair loss isn't improving. It's also sensible to get advice if you suspect ringworm, because it can need confirmation and it may affect other pets or people in the household.
Products That May Help
For patchy hair loss affecting the face, ears or paws, gentle washing and routine coat care can be useful as part of keeping the skin clean and comfortable while you monitor for changes.
Related Questions
Is ringworm in dogs contagious to people?
How can I tell ringworm from allergies or mites?
What should I clean at home if ringworm is suspected?
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.