Seasonal Parasite Risks for Pets: How to Protect Cats and Dogs All Year Round

Seasonal Parasite Risks for Pets: How to Protect Cats and Dogs All Year Round

Many pet owners assume fleas, ticks, and worms are only a problem in the warmer months. While it’s true that parasites thrive in summer, they’re far from a seasonal threat—your pet can be at risk all year round. Knowing which parasites are most active in each season helps you stay ahead with the right protection plan.


Spring: The Start of Parasite Season

As temperatures rise, fleas and ticks become more active. Fleas can multiply rapidly in warmer weather, and ticks thrive in long grass and bushy areas.

Tip for Spring:
This is the perfect time to start or restart a long-lasting treatment. For dogs, Bravecto for Dogs provides 12 weeks of flea and tick protection with one dose. For cats, Bravecto for Cats is a 3-month topical solution that helps break the infestation cycle.


Summer: Peak Flea and Tick Infestations

Hot, humid weather is a flea’s best friend. Ticks are also in full swing, putting dogs and cats at risk of diseases like tick paralysis and Lyme disease.

Tip for Summer:
Consistency is key. Explore Scriptly’s collections for extra coverage:


Autumn: The “Hidden” Season of Parasites

Many pet owners mistakenly stop treatments in autumn, but fleas can survive indoors year-round thanks to central heating and cosy bedding. Worms are also a continued risk as pets scavenge outdoors.

Tip for Autumn:
Stick to a regular prevention schedule. Worms and fleas don’t take a break just because the weather cools.


Winter: Indoor Flea Infestations

You may think winter is safe, but indoor heating creates the perfect environment for fleas to keep breeding. Pets also spend more time indoors, making infestations spread faster between animals.

Tip for Winter:
Don’t skip treatments. Bravecto’s extended coverage makes it easy to stay on top of parasite prevention without juggling monthly reminders.


Parasites don’t follow a calendar—they adapt to environments and can strike at any time of year. The best way to keep your pet safe is through consistent prevention, no matter the season. Explore Bravecto for Dogs and Bravecto for Cats to make year-round protection simple and stress-free.