Grass Seeds in Dog Paws: Signs, Season and Removal

If your dog has started sneezing violently and repeatedly, is pawing at one eye it will not open, or is struggling to breathe, ring a vet now. Those are the grass seed presentations that get worse by the hour. Do not go digging in a paw, an ear or an eye with tweezers — a seed you cannot see the whole of will be pushed deeper, and a seed in an ear canal is sitting against the eardrum. Do not feed the dog before the appointment, because removal usually needs an anaesthetic. Everything below assumes the dog is otherwise well.

Two things go wrong with Australian dogs’ feet in spring, and owners treat them as one problem because they arrive in the same month and hurt the same part of the dog.

A bindi is a prickle. It hurts the instant the dog stands on it, the dog lifts the foot and complains, you pull it out, and the story ends.

A grass seed is a different animal. It causes very little pain going in, so the dog usually gives you nothing more dramatic than some quiet licking. It is covered in backward-facing barbs, which means it can only travel one way through tissue, and that way is inward. Weeks later the same seed can be in a chest.

The one that makes your dog yelp is usually the one you can ignore. The one worth acting on is the one you barely notice.

The three things that matter most

Treat persistent licking at one spot as the main warning sign. A dog that keeps returning to the same paw, or to one patch of coat, for more than a day is telling you something is under the skin. Limping is the obvious sign, and plenty of grass seed dogs never limp at all.
Check between the toes after every walk in spring and summer, and spread the toes to look — the web between them is where seeds sit. This takes fifteen seconds and it is the single most effective thing on this page.
Go early. A seed still in the paw can often come out with sedation and a pair of forceps. The same seed a fortnight later has built a tract and may need imaging and surgery, and the gap between those two bills is large.

What a grass seed actually does

The part that causes the trouble is the awn — the long bristle attached to the seed of certain grasses. The seed itself is under a centimetre long; the awn adds several centimetres more. Under a lens the awn is covered in fine barbs, all of them pointing backwards, which is the plant’s way of burying its own seed in soil.

Four Paws Australia describe the mechanism plainly: the barbs “only allow movement in one direction – inwards.” Every step the dog takes, every muscle contraction, works the awn a little further in. It cannot back out.

On Australia’s east coast the usual offenders are spear grass, barley grass and wild oats. Barley grass grows in every state and territory and is the one the Australian clinics cited on this page name first.

Two things follow from the one-way mechanism, and both catch people out.

The seed does not stay where it went in. An awn that entered between two toes can track up the leg. One that was inhaled can reach a lung. The specialist hospital SASH say grass seeds can travel to the lungs, bladder, brain and even the spinal cord.

A dog that seems to improve may simply have a seed that has moved deeper. The swelling settles, the licking stops, everyone relaxes, and the problem is now somewhere harder to reach.

Where they end up, and what each one looks like

Walkerville Vet in Adelaide rank the sites by how often they see them: paws, ears, nose, eyes, then the body — including gums, tonsils, vagina and chest.

Paws

The classic picture is a red bump or small blister on the top of the paw that the dog will not leave alone. It often looks like a bite or a hot spot. There may be a weeping hole between the toes that keeps opening after it seems to heal — a draining tract, which is the body’s failed attempt to expel something it cannot reach.

Ears

This one is unmistakable and it is sudden. A dog that was fine walks in from the yard and starts shaking its head violently and scraping at one ear, often tilting the head to that side. The awn is against the ear canal lining or the eardrum, and it hurts a great deal.

Left alone, Four Paws list where this goes: middle-ear infection, loss of balance, and rupture of the eardrum. The balance sign is worth knowing, because a wobbly dog reads as something neurological and owners do not connect it to the ear. This is a same-day vet visit.

Nose

A violent, prolonged fit of sneezing that starts out of nowhere, sometimes with the dog driving its nose into the ground or a nosebleed. The sneezing may ease after a while, which tempts people to wait. The seed is still in the nasal cavity and needs a scope and an anaesthetic to retrieve.

Eyes

Looks like a bad eye infection — a squinting, weeping, light-shy eye. An awn lodged under the third eyelid will scrape the cornea with every blink. Four Paws are blunt about the endpoint: untreated, this can mean severe corneal damage and, at worst, blindness. Urgent, rather than wait-and-see.

Elsewhere on the body

Firm painful lumps, or abscesses that discharge pus or blood and then refill. Long-coated dogs get these in the armpit, groin and flank, where the coat is dense and the seed has time to work through.

The signs that arrive late

This is the set most owners have never heard, and it matters precisely because the local signs go quiet first. A seed that has already migrated shows up as something that looks like general illness. SASH list, for a seed that has reached the lungs: coughing, fever, tiredness, abnormal breathing, swelling of the neck, and going off food. For one near the spinal cord: difficulty walking, weakness, trouble urinating, and again going off food.

If your dog had a paw it would not stop licking a fortnight ago and now has a cough and a temperature, say so at the appointment. That history changes what the vet looks for.

How bad does it get

Most grass seeds are a paw, an unhappy afternoon and a bill. Walkerville Vet, answering the question owners actually want answered, say that grass seeds killing dogs is rare. It is still worth knowing the far end of the range, because that is what justifies the fifteen-second paw check.

A seed that reaches the chest can perforate a lung. In a French series of 22 dogs with collapsed lungs caused by migrating grass awns, the perforation was in the rear lung lobes in 20 of the 22, and the awn itself was visible on CT in only half the cases — which tells you how hard these are to find once they are deep.

Every dog in that series had already had chest surgery, because that is how they qualified for inclusion. So it describes how severe this can be rather than how often it happens, and it is French rather than Australian. What it establishes is that the migration is real and that the surgery is major.

A seed in the chest can also cause pyothorax, an infection in the chest cavity, which Walkerville describe as the consequence of a seed migrating into a vital area.

The Australian season — and the dates that keep circulating

Grass seed season is spring into summer, and it begins when the grass dries off and starts dropping seed rather than when it is green and growing.

Working from when barley grass actually flowers in Australia:

South Australia — mainly September to November
New South Wales — October to December
Perth — September to October
Western NSW — spring into early summer

Those dates come from HerbiGuide, a Western Australian weed database used widely in agriculture. It is an aggregator rather than a peer-reviewed source, so treat them as a good guide rather than gospel.

Australian vets describe a slightly longer danger window than the flowering dates, because the seed lies about in dry grass and dirt for weeks after it drops. Gawler Animal Hospital in South Australia put it at “a big problem from October through to February”. Walkerville Vet give October through to the end of the year in southern Australia. A Victorian practice describes spring and early summer.

So: roughly September to February, worst from October to January, and later the further south and the drier the season.

Watch for northern hemisphere dates on Australian pages

This is worth flagging because it is easy to be caught by it. Four Paws Australia’s own page on grass awns correctly says that “amongst the Australian veterinary community, spring and summer are known as grass-seed season” — and then, further down, advises keeping dogs out of tall grass “at the height of the awn season (June – August).”

June to August is the height of the awn season in Britain and Europe. In Australia it is the middle of winter, which is when barley grass is germinating rather than seeding.

The same page also tells owners that if an awn “has only partially penetrated the skin, you may be able to remove it yourself (using tweezers if necessary).” That one is worth disagreeing with directly. A partly buried awn is exactly the one that breaks, leaving the barbed section behind and deeper than it was.

Nobody is being careless on purpose — FOUR PAWS is the Australian arm of an Austrian organisation, and this is what happens when material written for the northern hemisphere gets reused on an Australian page. It is the same trap that catches Australians reading American advice about ticks or snakes. If a page gives you months rather than a season, check that the months make sense for where you live.

Bindis, the other spring foot problem

Bindii (Soliva sessilis, also spelt bindi or bindy-eye, and called jo-jo weed or onehunga in places) is a low flat rosette weed that looks a bit like carrot tops pressed into the lawn.

It is a winter annual. It germinates through autumn and winter, sits as a soft green rosette, and then in spring its seed heads harden into the prickles everyone knows. That is why the lawn seems fine all winter and turns hostile in September. The prickle is a compact head of sharp tapered seeds rather than a thorn.

Worth knowing that “bindii” gets applied loosely in Australia to several unrelated prickle plants — caltrop (Tribulus terrestris) and khaki weed among them. They all hurt, and none of them migrate.

For a dog, a bindi is a spike in the pad or between the toes. It hurts immediately, the dog reacts immediately, and it usually comes out with fingers or tweezers. Check the foot afterwards, clean it, and watch for a day or two in case the puncture gets infected.

Bindii attracts almost no veterinary literature, as against a substantial literature on grass awns. Search for it and you will find lawn-care companies and herbicide guides rather than case reports. It is a lawn problem that occasionally annoys a dog, and grass seeds are a dog problem that happens to live in lawns.

The practical difference at the moment it happens:

Bindi — sudden yelp or held-up foot, visible prickle, relief once it is out, finished.
Grass seed — little reaction at the time, then persistent licking at one spot over hours or days, a bump or a weeping hole, and it does not resolve on its own.

If you remove a prickle and the dog carries on licking that foot the next day, treat it as a grass seed and go.

An older dog that is stiff getting up, with no licking at any one spot, has a different problem again, and usually a joint one. That is where arthritis treatment for dogs in Australia comes in, once a vet has said what it is.

What to do at home, and what to leave alone

Worth doing:

Look properly. Spread the toes, lift the paw to the light, and check the webbing, the pads and the top of the foot. Run your hands through the coat, especially armpits, groin and behind the ears.
Take out what you can see whole and grasp cleanly — a seed sitting in the coat or resting on the skin, or a bindi in a pad. If the whole thing is visible and it lifts out without resistance, that is fine.
Brush the coat out after walks. Most seeds are still in the fur at this stage, and a brush removes them before they find skin.
Withhold food once you have booked. Gawler Animal Hospital say it plainly: do not feed your pet before coming in. Removal usually needs sedation or an anaesthetic, and a fed dog means either a delayed procedure or an avoidable risk.

Worth leaving alone:

Anything you cannot see the end of. Tweezering at a partly buried awn breaks it, leaves the barbed section behind, and pushes it deeper.
Ears. Never put tweezers, cotton buds or fluid into an ear canal with a suspected seed. The canal bends, the eardrum is at the bottom, and you cannot see either.
Eyes. Flush gently with saline if you like, and go.
Noses. Nothing to be done at home.
Anything that has closed over. A lump or a healed-looking hole with a seed under it needs imaging, not squeezing.

What happens at the vet, and what it costs

Removal almost always needs sedation or a general anaesthetic. Gawler Animal Hospital are direct about why: the seeds are painful and the dog will not hold still for the poking required. Nobody is being precious by insisting on it.

For a paw, that usually means sedation, a search of the tract with fine forceps, sometimes a small incision, then flushing and antibiotics. For a nose, Walkerville describe passing a scope under anaesthetic until the tips of the awn hairs come into view, then grasping them with alligator forceps. Ears need an otoscope and a dog that is completely still. Deep or migrated seeds need ultrasound or CT first, and sometimes surgery.

On cost, one of the few Australian clinics to publish a price list is Walkerville Vet in Adelaide, who list grass seed removal at $380, on top of a $98.20 consultation. The list carries no effective date, though the page footer dates to 2024, so treat it as an order of magnitude rather than a quote, and expect city specialist prices to run higher.

A seed that has migrated into a chest or an abdomen is a different financial event altogether — imaging, surgery and hospitalisation. No Australian clinic publishes a figure for that, so take it as substantially more rather than a number.

Worth knowing that vets sometimes cannot find a seed at the first attempt. Gawler say it can take repeat anaesthetics to locate one. It happens, it reflects the difficulty of chasing a small barbed object through tissue, and it means a second anaesthetic and a second bill.

Prevention, in rough order of usefulness

The daily check. Between the toes, ears, armpits, groin. Build it into the routine the way a daily tick search should be — and in much of Australia the two seasons overlap, so you can do both at once.
Keep the lawn short and pick up the clippings. Cut grass that is left lying is still full of seed.
Stay out of long dry grass in spring and summer, particularly paddock edges, roadside verges and anywhere beside a cereal crop.
Get the feet clipped. Ask a groomer for “poodle feet” — the hair between and around the pads trimmed back. Walkerville recommend it for long-coated dogs in spring, and it removes the fur that catches and holds seeds against the skin.
Trim around the ears on long-eared and long-coated breeds.
Brush after every outing during the season.

Walkerville single out long-haired non-shedding dogs as being at much higher risk — poodles and the oodle crosses — because a coat that never drops hair holds a seed against skin long enough for it to work in. SASH make a related point about medium-length coats, where the density of the coat does the same job. Short-coated dogs still get them in paws, ears and eyes.

The short version

Persistent licking at one spot is the sign. Limping is a bonus, and plenty of affected dogs never limp.
Grass seed barbs only travel one way, and that is inward.
Sudden violent head shaking, sneezing fits or a shut eye mean go now.
Take out what you can see whole. Leave everything else — especially in ears.
Don’t feed the dog once you have booked the appointment.
The season is roughly September to February, worst October to January. Ignore June to August dates on Australian pages.
Coughing, fever or going off food weeks later can be the same seed, somewhere worse.
A bindi comes out and it is over. A grass seed keeps going.

Sources

This page is general information, not veterinary advice, and it cannot tell you what is under your dog’s skin. If your dog is licking one spot, shaking its head, sneezing repeatedly or holding an eye shut, see a veterinarian — and do not go looking for a grass seed with tweezers.

Grass Seeds in Dog Paws — And How to Tell Them From Bindis