Parasites aren’t just annoying—they can cause serious health problems for your dog if left untreated. From itchy flea bites to life-threatening heartworm disease, prevention is the best way to keep your pup healthy and comfortable.

Why parasite prevention matters

Parasites like fleas, ticks, and worms don’t just affect your dog’s skin or digestion—they can spread diseases, trigger allergies, and even lead to organ damage. Regular prevention protects not only your dog but also your family, since some parasites are contagious to humans.

Common parasites to watch for

• Fleas: Cause itching, skin irritation, and can transmit tapeworms.
• Ticks: Spread dangerous diseases like Lyme disease and ehrlichiosis.
• Heartworms: Spread by mosquitoes, these worms attack the heart and lungs.
• Intestinal worms: Roundworms, hookworms, and whipworms can cause digestive problems and malnutrition.

Year-round prevention is key

Parasites can be a problem in every season, not just summer. Fleas and ticks thrive in warm weather, but heartworms are spread by mosquitoes, which can be present much of the year depending on your location. Preventive medications should be given consistently for full protection.

Options for parasite control

Veterinarians recommend a combination of preventive measures, which may include:

• Monthly oral or topical medications for fleas, ticks, and heartworms.
• Routine deworming for intestinal parasites.
• Regular grooming and checking your dog’s coat after outdoor activities.
• Keeping living spaces clean and washing bedding frequently.

Signs your dog may have parasites

Even with prevention, it’s important to watch for early signs of an infestation or infection:

• Excessive scratching, biting, or licking.
• Visible fleas, ticks, or worm segments in stool.