Everything You Wanted to Know About Fecal Parasite Testing But Were Afraid to Ask

Why is fecal parasite testing important?

Internal parasites are very common. Almost every day, we see fecal test reports come back from the lab with positive results. We commonly see roundworms, hookworms, whipworms, tapeworms, giardia and coccidia in our patients. These parasites are all extremely treatable but many are contagious to people (especially kids) and can make pets pretty sick until they are discovered and treated. Check out our handout on Parasites, Pets and Kids to find out more.

How do these parasites get into our pets?

Infected wildlife or pets that poop outside can contaminate soil, ponds or puddles with worm eggs or larvae or protozoa cysts. Pets that simply walk around outside can pick up infective forms of the organisms on their feet. As soon as they lick their feet they can be infected. Drinking water from contaminated sources is another way that pets commonly get infected. Ingestion of infected wild life (like rodents) is one other source.

Do I have to worry about parasites if I keep my cat indoors?

Indoor pets are not immune from parasites. If your cat is a great hunter you may not have even known that a mouse got into your house and was eaten by your cat. Cats also love chasing and eating bugs, which can be another source of parasites. Cockroaches and flies, in particular, are known parasite sources since they may eat animal feces and come into the house. Fleas are small enough to fit through screens and spread tapeworms to your cat when eaten during normal grooming.

Won't I know if my pet has parasites?

Often, you will know that something is wrong with your pet. You might notice diarrhea and vomiting, or you may actually see evidence of worms in your dog's or cat's vomit or stools. But some parasites only cause mild symptoms that can be easy to miss. You might chalk up an occasional soft stool to eating something from the table or mild weight loss to a lifestyle change, rather than to the parasites that are actually causing the problem.

What should I do to keep my pet healthy?

Every pet should have a poop sample brought to the veterinarian for testing every year. Some pets may need more frequent testing if they hunt or have more wildlife or dog park exposure. Monthly parasite preventatives are a must. Heartworm preventatives for both dogs and cats provide some protection against some intestinal worms, but no product exists that protects against everything. Annual fecal testing is one of the most important parts of veterinary care for your pet and a safety measure for your family.

For more information about specific parasites, browse the general category on our online handouts and read information about heartworms, hookworms, roundworms, tapeworms and whipworms.