Gastroenterology is the branch of medicine focused on the digestive system and its disorders. It encompasses the study of the stomach, intestines, liver, pancreas, and gallbladder. Gastroenterologists diagnose and treat conditions such as ulcers, irritable bowel syndrome, Crohn's disease, and liver disease. This specialty also involves endoscopic procedures, where instruments are used to view the gastrointestinal tract. Effective treatment in gastroenterology can significantly improve a patient's quality of life.