Why Do Dogs Scratch the Ground After Toileting?

You've all seen it. Your dog finishes a poo, then kicks up a storm of grass, soil or gravel with its back legs like a tiny bull preparing to charge. It looks like they're covering their mess up — but they're actually doing the opposite. Here's what's really going on, backed by the behavioural research, plus when the habit is worth a second look.

The short answer: they're leaving a message

Ground-scratching after toileting is a form of scent marking and communication, not tidying up. Far from hiding the evidence, your dog is drawing attention to it. The behaviour combines two signals at once: a chemical one you can't detect, and a visual one you can. Together they tell any dog that passes later, "I was here."

The behavioural ecologist Marc Bekoff, who has studied this since the 1970s, describes ground-scratching as a composite signal — one message carried by two channels that reach other dogs over different distances and last for different lengths of time.

What's actually on your dog's paws

The chemical half of the signal comes from your dog's feet. Dogs have several types of scent-producing glands packed into their paws:

• Interdigital glands — between the toes
• Sweat glands in the pads — dogs sweat mainly through their feet
• Sebaceous (oil) glands in the fur around the toes

These glands release the dog's own personal scent and pheromones — chemical messengers that carry information other dogs read instantly. When your dog rakes the ground, it's pressing and spreading this scent into the soil and grass, laying down a fresh, personal calling card right next to the urine or faeces it just left.

That's the clever part. Urine scent fades quite quickly, but the pheromones ground into the earth, plus the disturbed soil itself, last far longer.

A signal you can see, and one you can't

The scratch marks aren't an accident — they do a job. A patch of torn-up grass or gouged earth is a visual sign that stands out from a distance, long after any smell has drifted away. A dog approaching from across a field can spot the disturbance before it's close enough to sniff anything.

So the two signals work as a pair:

| Signal | How it travels | How long it lasts | |---|---|---| | Pheromones from paw glands | Close range, by smell | Longer than urine scent | | Visible scratch marks | Long range, by sight | Until weather or growth erases them | | The urine or faeces itself | Close range, by smell | Shortest-lived |

By layering all three, a dog leaves a message that can be picked up whether another dog is right on the spot or spots it from afar.

Why only some dogs do it

Here's the surprise: ground-scratching is far less common than most people assume. Bekoff's work on free-ranging dogs found that only a minority — often quoted as around one in ten — do it regularly. If your dog does, it's completely normal; if it doesn't, that's normal too.

A few patterns stand out from the research:

• It's more likely when other dogs are around. Bekoff found dogs scratch more when there's an audience or when they can smell that other dogs use the area — which fits a communication signal rather than a private habit.
• It often follows sniffing another dog's mark. Many dogs scratch hardest right after investigating where another dog has toileted, effectively "replying" to the message.
• Intact males and confident dogs tend to do it more, in line with its role in signalling presence and status, though both sexes scratch.
• New or contested territory brings it out. A dog on an unfamiliar walk or in a spot with lots of canine traffic is more likely to make a show of it.

Is it about territory and dominance?

Partly. Ground-scratching sits within the wider world of canine scent marking, which vets and behaviourists agree is largely about communication and territory. A recent 2024 study of free-ranging dogs confirmed that scent marks help manage both territorial defence and competition between dogs, with males responding most strongly to the marks of neighbouring males.

But it's worth not over-reading it. "Dominance" in the old, rigid sense is out of date. It's more accurate to think of ground-scratching as your dog announcing itself and gathering information — a bit like signing a shared guestbook — rather than staking a hostile claim. Many dogs also simply seem to enjoy the physical act, kicking away with obvious relish.

Does it mean anything different after peeing versus pooping?

Dogs scratch after both, and the motivation is broadly the same: adding scent and a visual sign to a fresh mark. There are a couple of small differences worth knowing.

• After urinating, scratching tends to reinforce a deliberate territorial message, especially in males cocking their leg on a prominent spot. The urine already carries a lot of information — age, sex, whether a female is in season, stress levels — and the scratch adds a lasting visual flag beside it.
• After defecating, faeces themselves carry scent from the anal glands, so the ground-scratch again layers on a second, longer-lived signal.

Either way, the behaviour is your dog topping up a message with something that outlasts the smell. You'll often notice it's more enthusiastic on grass and soft ground, simply because there's more to kick up and the marks show more clearly than on pavement.

From wolves to your back garden

This isn't a quirk your dog invented. Ground-scratching is seen across the wider dog family, including wolves and coyotes, where it helps space animals out and reduce direct confrontations over territory. Leaving a clear "someone's already using this patch" sign means rival animals can keep their distance without ever having to meet — a tidy way to avoid a fight.

Your dog has inherited that instinct wholesale, even though the only rivals it's signalling to are the spaniel from three doors down and next-door's terrier. Understanding the behaviour as ancient and functional, rather than random or rude, makes it much easier to accept — and to spot when it's genuinely worth managing.

Should you try to stop it?

For the vast majority of dogs, no. It's a normal, healthy, instinctive behaviour and correcting it can cause confusion or frustration for no real benefit. There are, however, a few situations where gentle management makes sense:

• It's wrecking a lawn or flowerbed. Redirect by walking your dog on to a hard or gravelled surface for toileting, or calmly move it along with a treat and a cue like "let's go" straight after it finishes, before the scratching starts.
• On someone else's property or a neat public space. Same approach — interrupt kindly and move on, don't punish.
• It's triggering another dog. If your dog's marking display is winding up a reactive dog nearby, just create distance.

Never tell a dog off for it. Punishment doesn't remove the instinct; it just adds anxiety to a natural behaviour and can make matters worse.

When ground-scratching is worth a closer look

The behaviour itself is benign, but occasionally the *way* a dog does it, or a change in it, points to something else:

| What you notice | What it might mean | |---|---| | Suddenly scratching far more than usual | Increased anxiety, a new dog in the area, or stress from a change at home | | Licking, chewing or limping on the paws afterwards | Sore pads, an interdigital cyst, a grass seed, or a skin allergy — worth a vet check | | Scratching indoors on carpet or beds | Often unrelated "nesting" or comfort behaviour rather than marking | | Digging obsessively rather than a quick kick | Boredom or under-stimulation — more enrichment usually helps | | Straining or discomfort while toileting | A toileting or gut problem — see your vet |

If the scratching comes with sore feet, look closely for grass seeds lodged between the toes, especially in summer — they're a common UK problem and can burrow into the skin.

And if your dog seems to be kicking up the ground out of sheer restlessness rather than after toileting, the fix is usually more to do than more discipline. Plenty of sniffing walks and some indoor enrichment and puzzle toys give that busy brain a proper outlet.

The quick version

• Ground-scratching after toileting is marking, not covering up.
• Glands in the paws deposit scent and pheromones; the scratch marks add a visual sign.
• It's a composite signal aimed at other dogs, more common when dogs are around.
• Only around one in ten dogs does it regularly — presence or absence is both normal.
• It's usually best left alone; redirect gently only if it's damaging a lawn or upsetting another dog.
• See a vet if the paws look sore, or if the behaviour changes suddenly.

So next time your dog puts on that theatrical back-leg display, you can relax. It's not bad manners — it's your dog leaving a perfectly normal note for the neighbourhood.

Sources

• Psychology Today – Ground Scratching by Dogs: Scent, Sight, and Ecstasy (Marc Bekoff)
• VCA Animal Hospitals – Dog Behaviour Problems: Marking Behaviour
• RSPCA – Dog behaviour
• Biswas et al. (2024) – Understanding the role of scent marking in social dynamics and territoriality of free-ranging dogs