Gastroenterology is the branch of medicine that focuses on the diagnosis, treatment, and management of disorders related to the digestive system. This includes the gastrointestinal (GI) tract, liver, pancreas, and gallbladder. Gastroenterologists are specialists trained to manage conditions affecting these organs.
Endoscopy (upper GI tract).
Colonoscopy (lower GI tract).
Capsule endoscopy.
ERCP (Endoscopic Retrograde Cholangiopancreatography) for bile ducts.
Liver biopsy.
Ultrasound, CT, and MRI scans.