Dogs and cats are natural hosts for several internal parasites. These parasites are most often referred to collectively as “worms.” Roundworms, hookworms, tapeworms, and whipworms are the most common internal parasites in pets, and only tapeworms and roundworms can easily be observed in a pet’s stool. Kittens and puppies often have roundworms because they are passed from mother to offspring in utero and during nursing.
If your pet has worms, they could experience a wide range of symptoms, including: