Parasites: inside and out Home | Basic Dog Health | Adult Dog Care | Resources There are two types of parasites that can affect your dog: internal and external. Fleas, ticks and a few others live, for the most part, on the outside. Internal parasites are another matter and include such notable characters as tapeworms, roundworms and heartworms. There are three general reasons why you'll want to avoid parasites in your dogs life: They can drain or siphon important nutrients from your dog's system They can cause a variety of health related problems They can carry and transmit diseases Lets take a closer look at some of the more prevalent parasites in the dog world Fleas Ticks Mites and Lice Roundworms, Hookworms and Whip worms Tapeworms Heartworm Basic Dog Health Veterinarians Tips for a Healthy Dog Vaccinations Prevention Appetite Recoginzing Habits Parasites: Fleas Ticks Mites & Lice Roundworms and others Tapeworms Heartworm Spay & Neuter Medications Signs of Illness Pain and how to Manage it Adult Dog Care Health & Nutrition Grooming Bathing Your Dog Dental Care Exercise & Play Geriatric Dogs