During an upper endoscopy, an endoscope is easily passed through the mouth and throat and into the esophagus allowing the doctor to view the esophagus, stomach, and upper part of the small intestine.
Recommended Related to Digestive Disorders
Diarrhea and Lactose Intolerance: When Dairy Is the Problem
Milk may do a body good, but not if you’re one of 30 to 50 million people who suffers from lactose intolerance. Lactose intolerance results from an inability to digest the natural sugar (lactose) found in milk and milk products. Lactose intolerance symptoms can include bloating, diarrhea, gas, and cramping. But there are ways to manage lactose intolerance while reaping the nutritional benefits of dairy products.
Read the Diarrhea and Lactose Intolerance: When Dairy Is the Problem article > >
Similarly, endoscopes can be passed into the large intestine (colon) through the rectum to examine this area of the intestine. This procedure is called sigmoidoscopy or colonoscopy depending on how far up the colon is examined.
A special form of endoscopy called endoscopic retrograde cholangiopancreaticography, or ERCP, allows pictures of the pancreas, gallbladder, and related structures to be taken.
Endoscopic ultrasound or EUS combines upper endoscopy and ultrasound examination to obtain images and information about various parts of the digestive tract.