Intestinal Worms

Intestinal worms are relatively common in many animal species including dogs and cats. Regular deworming is essential to ensure your pets remain healthy and to reduce the risk to people.


Intestinal worms are spread via dog faeces, so can be picked up anywhere from the backyard to the dog park. Puppies and kittens are often the most susceptible to worm infestation. Puppies and kittens sometimes arrive at their new owner’s home with worms already present. In very young dogs, or if present in high numbers, intestinal worms can cause gastrointestinal disease, malnutrition and anaemia. Sometimes there may be no obvious signs that your dog has intestinal worms

Importantintestinal worms that can affect Australian pets are:





Frequent deworming will kill worms that are present, but it is very easy for your pet to become reinfected and so it’s important to continue deworming your pet all year round. Some intestinal worm species can produce large numbers of eggs, for example roundworm can lay 200,000 eggs per day within five weeks of infestation. It’s important to maintain a regular deworming program for your pets to reduce eggs being shed into the environment. 

How often should I deworm my pet?


For routine prevention:

  • 2-12wk of age — worm every 2 weeks
  • From 12wk of age — worm every 3 months

If using a combo product such as Nexgard Spectra, your worming is included in the monthly treatment. This is very safe to give monthly rather than within the above routine.


If you suspect your pet has intestinal worms, we recommend a physical health check and will recommend suitable treatment and ongoing preventative care.

Can you get worms from your pet?

The short answer is yes, many worms infesting domestic animals are zoonotic, meaning they can be transmitted from animals to humans. Different worms cause different diseases and each have their own symptoms. Whilst anyone can become infected by intestinal worms, children and the immunocompromised are at greater risk. One of the most important ways to reduce human exposure is regular deworming of pets.

How to reduce the risk of human exposure to worms:

  • Routine deworming for all pets in your household
  • Prompt disposal of pet faeces on a daily basis.
  • Ensure good hygiene, encourage children to wash their hands regularly (especially after playing in dirt or sandpits, playing with pets or prior to eating)
  • Protect playgrounds, garden areas and cover sandpits
  • Always dispose of dog faeces in public parks and playgrounds
  • Prevent your pet from scavenging or hunting.