If you own a dog or cat in Australia, worming probably sits somewhere near the bottom of your to-do list — a job you vaguely remember doing “sometime last season.” But vets are warning that this winter, plenty of Aussie pets are quietly overdue. Recent industry alerts suggest hundreds of thousands of dogs are carrying parasites their owners assume are only a warm-weather problem. Here’s the part most people miss: intestinal worms don’t hibernate, and some of them can spread to your family.
Why winter doesn’t stop worms
It’s a common assumption that parasites go quiet once the temperature drops. That’s partly true for some external pests, but intestinal worms live inside your pet and in the soil of your backyard, where their eggs can survive for months. Roundworm eggs in particular are hardy and can linger in the environment through winter, ready to reinfect a sniffing, digging dog long after summer ends. So the “it’s cold, we’re fine” logic simply doesn’t hold for worms the way it might for a few other pests.
The worms Aussie pets actually get
There are four intestinal worms most Australian dogs and cats encounter. Knowing them helps you understand why a single “all-wormer” tablet is usually the practical choice:
- Roundworm — very common in puppies and kittens, which can be infected before birth or through their mother’s milk. Eggs shed in faeces can survive in soil.
- Hookworm — attaches to the gut wall and can cause anaemia, especially in young animals.
- Whipworm — lives in the large intestine and can cause ongoing diarrhoea in dogs.
- Tapeworm — often linked to fleas, which is one reason worming and flea control go hand in hand.
Hydatid tapeworm deserves a special mention. For a typical suburban pet, the risk is effectively zero — it’s tied to dogs eating raw offal or carcasses, such as on some rural properties. If your dog has access to raw sheep offal or wildlife carcasses, that’s a genuine conversation to have with your vet, because hydatid disease can seriously affect people.
The bit owners underestimate: worms and your family
This is where worming stops being just a pet-care chore. Roundworm and hookworm are zoonotic, meaning they can pass from pets to humans. According to Victoria’s Better Health Channel and Australian veterinary sources, children, older adults, pregnant women and anyone immunocompromised are most at risk. In rare cases, roundworm larvae can migrate through the body and, very occasionally, affect the eyes or other organs. It’s uncommon — but it’s exactly why regular worming and basic hygiene matter, not because your pet looks unwell.
How often should you worm? A simple Australian guide
Australian vet clinics and welfare bodies broadly agree on a schedule. Always confirm the right products and timing with your own vet, but as a general guide:
- Puppies and kittens: every 2 weeks until 12 weeks of age, then monthly until 6 months.
- Adult dogs and cats: at minimum every 3 months for the rest of their life.
- Higher-risk pets (households with young children, hunting cats, or dogs that scavenge): many vets now recommend monthly worming for extra protection against zoonotic spread.
The Australian Companion Animal Zoonoses Advisory Panel goes further for cats, recommending monthly deworming and year-round flea control even for indoor-only cats — because fleas and the odd hunted mouse can still bring parasites inside.
Practical steps you can take this week
- Check the date on your pet’s last worming dose — if you can’t remember, you’re likely overdue.
- Pick up dog faeces from the backyard promptly and clean litter trays daily to break the reinfection cycle.
- Wash hands after handling pets, and teach kids to do the same before eating.
- Pair worming with flea control, since fleas spread tapeworm.
- If you see worms in faeces, unexplained weight loss, a pot-bellied puppy, or scooting, book a vet visit.
Worming is one of the cheapest, simplest forms of preventive care you can give — and one of the few that protects the humans in the house too. A quick check today beats a nasty surprise later. For diagnosis or a schedule tailored to your pet’s age, lifestyle and location, consult a licensed veterinarian.
Frequently asked questions
Can indoor cats really get worms?
Yes. Fleas can hitch a ride indoors, and cats that hunt insects or the occasional mouse can pick up parasites. That’s why many Australian vets recommend regular worming for indoor cats too.
Do I need a separate product for each worm?
Usually not. Most “all-wormer” tablets sold in Australia cover roundworm, hookworm, whipworm and tapeworm in one dose. Your vet can confirm the right product for your pet’s weight and needs.
How do I know if my pet has worms?
Signs can include visible worms or rice-like segments near the tail, scooting, a swollen belly in puppies, weight loss or dull coat. Many pets show no signs at all, which is why routine worming matters more than waiting for symptoms.
Is worming safe if my dog is pregnant?
Some wormers are safe during pregnancy and are actually recommended to reduce transmission to pups, but not all products are suitable. Always check with your vet before worming a pregnant pet.
Key takeaways
- Intestinal worms don’t stop in winter — backyard soil keeps eggs alive year-round.
- Roundworm and hookworm are zoonotic and can affect people, especially kids and vulnerable adults.
- Adult dogs and cats need worming at least every 3 months; monthly for higher-risk households.
- Good hygiene and prompt faeces clean-up work alongside worming, not instead of it.
- When in doubt about products or timing, your vet is the best source of advice.
