Gastrointestinal disease
| Digestive disease | |
|---|---|
| Organs of the gastrointestinal tract | |
| Specialty | Gastroenterology | 
Gastrointestinal diseases (abbrev. GI diseases or GI illnesses) refer to diseases involving the gastrointestinal tract, namely the esophagus, stomach, small intestine, large intestine and rectum; and the accessory organs of digestion, the liver, gallbladder, and pancreas.