Roundworms are 2-6 inch long intestinal parasites that are seen in dogs and cats of all ages. Pups are infected through the soil and mother’s womb or through mother’s milk. Weight loss, diarrhea, vomiting, and “pot belly” are common symptoms. Diagnosis is made with fecal examination/flotation. Treatment consists of oral medications, pyrantel pamoate. Most heartworm preventatives prevent re-infection once treated. Yards and kennel areas should be kept clean of feces.