Gastroenterology is a branch of medicine focused on the digestive system, encompassing the study, diagnosis, and treatment of disorders affecting the gastrointestinal tract, liver, gallbladder, and pancreas. Gastroenterologists specialize in addressing a wide range of conditions, such as acid reflux, inflammatory bowel diseases, ulcers, liver diseases, and cancers that impact the digestive system. They use various diagnostic procedures like endoscopy, colonoscopy, and imaging techniques to evaluate and manage gastrointestinal health issues.