Why does my dog have scabs or sores from itchy skin?
Share This Guide
Read time: 3 minutes
Overview
Scabs or sores from itchy skin in dogs are often caused by scratching, licking or chewing at irritated skin. There can be several possible reasons, including allergies, parasites, dry skin or a skin infection, so it’s worth checking the pattern and looking closely at the skin.
Small scabs can sometimes build up quickly when a dog keeps bothering one area. The aim is to work out what might be triggering the itch and to stop the skin getting more sore.
Things To Check
1. Check where the scabs or sores are. Patches on the ears, belly, paws, armpits or around the tail can sometimes point to different triggers.
2. Look for fleas, flea dirt or other signs of bites, especially if the itching seems worse after time outdoors.
3. Notice whether your dog is licking, chewing, rubbing or scratching one area more than the rest.
4. Check for redness, heat, swelling, broken skin, discharge or an unpleasant smell, as these can suggest the skin is becoming more inflamed or infected.
5. Think about any recent changes such as a new food, shampoo, bedding, cleaner, grooming routine or walk route.
6. See whether the itching is seasonal or happens after grass, dust, pollen, muddy walks or swimming.
7. Note whether the sores seem to be getting bigger, more numerous or slower to settle.
Common Causes
One of the most common causes is fleas or other biting insects. Even a small number of bites can lead to a lot of scratching in some dogs.
Allergies are another common reason, including reactions to something in the environment or, less commonly, food. These often cause recurring itchiness and sore patches from repeated rubbing or licking.
Dry skin or irritation from grooming products, shampoos, grass or household cleaners can also leave the skin itchy and prone to scabbing.
A skin infection can develop after the skin has been scratched or licked repeatedly. This can make the area red, sore, crusty or smelly.
Less commonly, mites or other skin problems may be involved, especially if the itching is intense or keeps coming back.
What To Do
Try to stop your dog making the area worse. Keep nails short if you can do so safely, and discourage constant licking or scratching.
Keep an eye on the sore areas over the next few days and note whether the itch is improving, staying the same or getting worse.
Use a gentle, consistent grooming routine and avoid any products that seem to make the skin sting or flare up.
Check your dog’s bedding, resting areas and recent walks for possible triggers such as fleas, pollen, muddy ground or irritants.
If the problem is recurring, taking a clear photo of the skin and keeping a short note of when the itching happens can help you spot patterns.
When To Contact A Vet
Contact your vet if the sores are spreading, becoming very red or painful, or if there is discharge, a bad smell, or signs your dog feels unwell. You should also get advice if the itching is persistent, keeps coming back, or your dog is making the skin bleed by scratching or licking.
Products That May Help
If your dog’s skin is sore, flaky or prone to rubbing, gentle grooming and routine washing can sometimes help support day-to-day skin and coat care.
Related Questions
Why is my dog scratching more than usual?
How can I tell if my dog has fleas or an allergy?
What should I do if my dog keeps licking the same sore spot?
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.