| | Surgery & Procedures | Gastric Bypass Surgery How do you use the word gastroenterology in a sentence? The patient was referred to a gastroenterologist, a doctor who specializes in gastroenterology, for further evaluation of their abdominal pain. Gastric Bypass Surgery - Related Articles You have black stools but the rectal examine showed no blood what could it be? Cons of a Gastric Bypass Healing Time for Stomach Stapling Upon what does a gas shape depend? Pickwickian What Is How to Do the Reverse Fly What makes gastric bypass pouches different than a stomach?