Parasites come in many different species and forms and can live both inside and outside your pet. Some of the more common types of internal and external parasites include:

Internal parasites:
Intestinal (GI) worms

• Roundworms
• Hookworms
• Tapeworms
• Whipworms

Tapeworms are long, flat worms that attach themselves to your dog’s (or cat’s) intestines. A tapeworm body consists of multiple parts, or segments, each with its own reproductive organs. Tapeworm infections are usually diagnosed by finding segments—which appear as small white worms that may look like grains of rice or seeds—on the rear end of your dog, in your dog’s feces, or where your dog lives and sleeps.