A gastroscopy, also known as an upper endoscopy, is a procedure that examines the upper part of your digestive system, including your food pipe (esophagus), stomach, and duodenum (the first part of your small intestine).

A colonoscopy is a procedure that allows a doctor to examine the inside of your colon and rectum for abnormalities. It's performed using a colonoscope, a long, flexible tube with a camera and light on the end.

Variceal banding and sclerotherapy are both endoscopic procedures that can treat enlarged veins in the esophagus:

ERCP (endoscopic retrograde cholangiopancreatography) stenting is a procedure that uses stents to treat blockages in the bile duct, gallbladder, pancreas, or liver.

An endoscopic polypectomy is a procedure that removes polyps from the digestive tract using an endoscope, a long, flexible tube with a camera and light:

Endoscopic foreign body removal is a minimally invasive procedure that removes objects stuck in the digestive tract. It involves using a gastroscope to grasp, manipulate, and remove the foreign body.