Intestinal Parasites -------------------- A variety of roundworm and strongyle-type worms can parasitize captive box turtles. Reinfection results when pet turtles are permitted to feed in an environment in which feces are allowed to accumulate and contaminate food. Numerous deaths of box turtles occur every year from intestinal rupture and peritonitis resulting from heavy intestinal parasitism. Few box turtles are parasite-free; therefore, yearly fecal exams and/or routine dewormings are recommended. Strict attention to hygiene, frequent soil changes and periodic rotation of habitats to reduce exposure to these parasites are also recommended.