Foreign Body Ingestion ---------------------- Water turtles may eat a variety of foreign objects, such as fish hooks, gravel and aquarium parts. Only rarely does the turtle owner see the turtle swallowing the foreign body. Usually these turtles are presented to a veterinarian because of poor appetite, weight loss or emaciation. Radiography (x-rays) is usually necessary to confirm the diagnosis. Sometimes the foreign body does not show up on the radiograph, and a barium study is necessary to make the diagnosis. Most often, surgery must be employed to remove the foreign body.