Intestinal parasites are parasitic worms that primarily inhabit the gastrointestinal tract. The most common intestinal parasites are roundworms, hookworms, tapeworms, and whipworms. The worms vary in size and potential disease severity, depending on the age of your pet and infestation severity. Several of the parasites do affect humans, but fortunately, routine sanitation helps limit the risk substantially. Routine deworming and regular use of heartworm and flea preventatives should control these parasites. Occasionally you may see intestinal parasites in your dog or cat’s stool. If that happens, just give us a call.