Gastrointestinal or digestive diseases are numerous and can affect the esophagus, stomach, gallbladder, the small and large intestines, and the rectum. Gastrointestinal disease symptoms can vary widely, depending on the organ that is affected. Our team of digestive specialists includes gastroenterologists, general surgeons and ear-nose-throat specialists (otolaryngologists). If you are having pain or difficulty eating or digesting, blood in the stool, changes in bowel habits, and/or weight loss, call Nurses On-Call to make an appointment at Research Medical Center in Kansas City. We treat conditions at any stage of digestion.