You give them a quick fuss and come away wearing half their coat. There's fur on the sofa, fur in the car, fur somehow in your morning coffee. If you've found yourself asking "why is my dog shedding so much?", the first thing to know is that for most dogs, shedding is completely normal and nothing to worry about.
Here's the quick answer. Dogs shed old hair to make way for new, and how much they drop depends on their breed, their coat type, the time of year and their overall health. Most of the time a heavy shed is just your dog swapping their coat over. Now and then, though, a change in shedding can be a sign that something needs a closer look, and we'll show you exactly what to watch for.
A gentle note before we dig in: we know a lot about feeding dogs well, but we're not a stand-in for your vet. Think of this as a friendly guide to help you tell normal moulting from the kind that's worth a check-up.
How your dog's coat actually works
To understand the shedding, it helps to know what the hair is up to. Every hair on your dog grows on a cycle, moving through a few phases (Welle & Wiener, 2016):
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The growing phase, where the hair actively lengthens.
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A resting phase, known as telogen, where the hair sits tight and stops growing.
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The shed, where that resting hair is finally pushed out by a new one coming through underneath.
At any moment, different hairs are at different points in this cycle, which is why a bit of everyday shedding is normal all year round. When lots of hairs hit the resting-and-shedding stage together, you get a proper moult, and that's when the fur really flies.
The takeaway is simple. Shedding isn't your dog losing their coat, it's your dog renewing it. A healthy shed is a sign the whole system is ticking along nicely.
It's about daylight, not temperature
Here's something that surprises a lot of owners, and it explains a mystery plenty of people never get to the bottom of.
Seasonal moulting is triggered mainly by day length, not by how warm or cold it is. As the amount of daylight shifts through the year, it signals your dog's coat to change over, which is why many dogs have a big moult in spring and another in autumn (Welle & Wiener, 2016). Daylight, or photoperiod as the science calls it, is the main conductor of the whole thing.
This has a very practical knock-on effect for modern dogs. Most of our dogs live indoors under artificial light and central heating, where the natural light signals get a bit muddled. The result is that instead of two clear moults a year, a lot of indoor dogs shed a steadier amount all year round. So if it feels like your dog never stops shedding, this is often why, and it's completely normal.
A couple of things worth knowing:
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A dog who spends more time outdoors tends to have more defined spring and autumn moults.
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An indoor dog who sheds a little constantly usually isn't unwell, they're just responding to indoor living.
Double coats, single coats and why shaving isn't the answer
How much your dog sheds, and when, is largely down to the coat they were born with.
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Double-coated breeds (think Huskies, German Shepherds, Labradors, Border Collies) have a soft, dense undercoat beneath their longer top coat. These are the champion shedders, especially when that undercoat "blows" during a seasonal moult.
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Single-coated breeds (like Greyhounds or Poodles) have no undercoat, so they tend to shed less noticeably, though they still lose hair.
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Low-shedding coats, such as those on many Poodle crosses, hold onto loose hair rather than dropping it, which is why they need regular clipping and brushing instead.
One important word of caution if you've got a double-coated dog. It's tempting to reach for the clippers in summer, but shaving a double coat is best avoided. That undercoat actually helps insulate your dog against both heat and cold and protects their skin from the sun, and once shaved it doesn't always grow back the same. If your double-coated dog is struggling in warm weather, regular deshedding is a far kinder way to help them stay comfortable.
The delayed moult: stress, illness and telogen defluxion
This is the other insight that catches owners out, because the cause and the effect can be weeks apart.
A significant physical stress can push a large number of hairs into their resting phase all at once. Then, a while later, they're shed together in one noticeable wave. Vets call this telogen defluxion, and the triggers include things like a fever, an illness, pregnancy or an operation. The heavy shed often shows up around one to three months after the event itself (Paterson, 2011).
Why does this matter? Because the timing means the moult you're seeing today might trace back to something that happened weeks ago, long enough that you might not connect the two. If your dog has recently been through the wars and is now dropping fur everywhere, this could well be why. The good news is that this type of shedding is usually temporary, and the coat tends to recover on its own once your dog is back to full health.
Everyday stress can play a part too. Our dog behaviourist partner Adem Fehmi notes that anxious or stressed dogs sometimes shed more in the moment. It's why you'll often see a snowstorm of fur at the vet's, when your dog is feeling on edge. If your dog seems to shed more during upheaval, like a house move or a change in routine, that emotional side is worth keeping in mind.
When shedding is trying to tell you something
Most shedding is business as usual. But sometimes the coat is flagging that something needs attention, and this is where playing detective pays off. Rather than the overall amount, it's the pattern and the company it keeps that matter.
We'd gently suggest a vet visit if you notice:
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Bald patches or thinning skin, rather than an even all-over shed. Losing hair in distinct spots is different from a general moult.
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Symmetrical hair loss on both sides of the body, which can sometimes point towards a hormonal cause.
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Itching, redness, scabs or sore-looking skin alongside the shedding. If your dog is scratching too, our guide on why your dog might be itchy is a helpful next read.
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A dull, brittle or dry coat that's changed in quality, not just quantity. Our article on why a dog's coat goes dry covers this in more detail.
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Other signs of feeling unwell, like low energy, weight changes, increased thirst or a poor appetite.
Behind these signs, a few health causes can affect shedding, including parasites like fleas and mites, food or environmental sensitivities, and hormonal conditions such as an underactive thyroid gland or Cushing's disease, where the body makes too much of the stress hormone cortisol (Paterson, 2011). None of these mean you should panic, but they're all worth ruling out, because your vet can get to the bottom of it far faster than guesswork. Diet and skin health are linked, so our vet Dr Scott Miller helps make sure our recipes support healthy skin and coat from the inside.
What actually helps with all the hair
You can't stop a dog from shedding, and you wouldn't want to, since it's part of a healthy coat renewing itself. What you can do is manage it well, so there's less of it floating around your home and your dog's coat stays in good nick. Here's what genuinely helps:
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Brush little and often. Regular brushing removes loose hair before it lands on your carpet, and it spreads the natural oils that keep the coat healthy. For double coats, an undercoat rake or deshedding tool reaches the loose fluff a normal brush misses.
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Step it up during a moult. When the seasonal shed kicks in, a daily brush for a couple of weeks makes a real difference.
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Bathe sensibly, not constantly. A wash can help loosen dead hair, but over-bathing strips natural oils and can leave skin dry. Use a gentle, dog-specific shampoo, and dry the coat thoroughly. Our grooming guide has more on getting the routine right.
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Feed a complete, quality diet. Since hair is built largely from protein, good food gives the coat the raw materials it needs to grow back strong and healthy.
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Keep fresh water topped up. Well-hydrated skin supports a healthier coat, and adding a little wet food can help if your dog isn't a big drinker.
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Book a vet check if anything looks off. If the shedding comes with any of the red flags above, don't wait it out.
Consistency is the secret here. A steady grooming routine and a good diet, given a bit of time, will always do more than any quick fix.
How the right food can help
Since a healthy coat starts from within, what goes in the bowl is one of the simplest ways to support it. To be clear, food won't stop normal shedding, and it works best alongside good grooming, but a thoughtfully made recipe can help maintain healthier skin and coat as your dog renews their fur.
Our Hair Necessities salmon recipe was made with skin and coat in mind. It's packed with freshly prepared salmon, which is naturally rich in omega-3 fatty acids, and like all our All Hounder recipes it uses human-grade ingredients from farmers we know and trust, with no nasties and no fillers. Every recipe is vet-approved and developed with veterinary input. If you'd like to understand the nutrition side in more depth, our guide on why a dog's coat can turn dry goes further into the fats and nutrients that skin and coat rely on.
Not sure which recipe suits your dog? Our pet food quiz can point you in the right direction, and you'll always find the right daily amount on the on-pack feeding guide, weighed out on kitchen scales rather than by the scoop, since every recipe has a slightly different density.
Pair a good diet with a regular brush and a bit of patience, and you'll keep the fur under control while your dog stays comfortable and happy in a healthy coat. A bit of shedding is simply the price of a lovely dog, and honestly, it's a small one.
FAQs
Are there any dog breeds that don't shed?
No dog is truly non-shedding, but some shed far less noticeably than others. Low-shedding breeds like Poodles and many Poodle crosses tend to hold loose hair in their coat rather than dropping it, which is why they need regular clipping and brushing. They can still trigger allergies in sensitive people, so "non-shedding" doesn't always mean "hypoallergenic".
What months do dogs shed the most in the UK?
Many dogs have their heaviest moults in spring and autumn, as changing daylight signals their coat to switch over. Indoor dogs living under artificial light often shed a steadier amount all year instead. Both patterns are perfectly normal.
Will a deshedding tool damage my dog's coat?
Used gently and correctly, a deshedding tool or undercoat rake is safe and really effective for double coats. The trick is a light touch, working with the coat rather than digging into the skin, and not overdoing it on the same spot. If you're unsure, a groomer can show you the right technique for your dog's coat type.
Can supplements reduce how much my dog sheds?
Some owners find omega-rich supplements can help support coat condition, but they won't stop normal shedding. A complete, quality diet usually provides what a healthy coat needs already, so it's worth checking with your vet before adding anything, as extra oils aren't always necessary or helpful.
My dog suddenly started shedding a lot after we moved house, is that normal?
Yes, this is fairly common, as stress and upheaval can prompt some dogs to shed more. It usually settles once your dog is comfortable in their new routine. If the heavy shedding carries on for weeks or comes with bald patches or sore skin, have a word with your vet.
Is it normal for a puppy to shed as they grow?
Yes, puppies shed their soft puppy coat as their adult coat comes through, often somewhere between six and 12 months. You might notice a change in texture and colour as this happens. It's a normal part of growing up, so there's usually nothing to worry about.
