Why Is My Dog Shedding On One Side More Than The Other?
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Read time: 3 minutes
Overview
If your dog is shedding more on one side, it’s often because that side is rubbing more, lying on the same surface more, or getting different attention during grooming. It can also happen with a local skin issue, parasite irritation or hair loss linked to an underlying health problem. A quick check of the coat and skin usually helps narrow down the most likely cause.
Things To Check
1. Notice whether the shedding is only in one area, such as the shoulder, flank, hip, neck or behind the ear, or whether it’s spreading.
2. Look closely for redness, dandruff, scabs, broken skin, heat, swelling or a strong smell from the coat.
3. Check whether your dog always sleeps on the same side or rubs against furniture, crates, car seats or bedding on one side more than the other.
4. Think about grooming patterns. It’s easy to brush one side more thoroughly than the other without noticing.
5. Part the coat and look for fleas, flea dirt, ticks or signs of irritation, especially around the tail base, belly, neck and ears.
6. Check for small bald patches, thickened skin, sores or areas where the hair seems to be breaking rather than shedding normally.
7. Notice whether your dog seems itchy, licks the area, scratches more than usual or flinches when you touch that side.
Common Causes
The most common reason is simple friction. Dogs often lose more coat on the side they sleep on, lean against, or rub on during daily life.
Uneven grooming can also make shedding look worse on one side, especially in long or thick coats.
Skin irritation from fleas, allergies, contact with something irritating, or a mild skin infection can cause one-sided hair loss or heavier shedding in a particular patch.
Less commonly, a lump, sore, pain, or another underlying health issue can change how a dog lies, scratches or grooms, which may make one side look thinner.
What To Do
Start by brushing both sides carefully so you can compare what’s coming out and check the skin underneath. Use a regular grooming routine and make sure you’re not missing one side.
Wash bedding, check for rough surfaces your dog may be rubbing on, and see whether changing sleeping spots makes any difference over a week or two.
If the coat looks dry or the skin is a bit flaky, keep grooming gentle and avoid over-washing. If there’s itching, sores, a smell or obvious skin change, it’s best to arrange a vet check rather than trying to guess the cause.
Take a couple of photos now so you can compare the area over time. That can be very useful if the shedding continues or changes.
When To Contact A Vet
Speak to your vet if the shedding is patchy rather than general, the skin looks sore or infected, or your dog seems uncomfortable, itchy or painful. You should also get advice if it’s spreading, if there are signs of parasites, or if the coat change is happening alongside other symptoms such as lethargy or appetite changes.
Products That May Help
If your dog’s coat or skin needs a bit of extra day-to-day care, this collection can be useful alongside regular brushing and washing routines.
Related Questions
Why is my dog shedding more in one patch?
Could fleas make my dog lose hair on one side?
When should I worry about patchy shedding in dogs?
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.