The most common patient complaints a gastroenterologist treats are heartburn, indigestion, nausea, vomiting, diarrhea, constipation, and abdominal pain. If these symptoms are treated properly they are often transient and resolve. However, they can be an indicator of more serious conditions such as: Barrett's esophagus, peptic ulcer disease, Helicobacter pylori infection, irritable bowel syndrome, infectious colitis, inflammatory bowel disease (Crohn's and ulcerative colitis), celiac disease, hepatitis, liver cirrhosis, and more.
To diagnose and treat these conditions your gastroenterologist may need to perform a colonoscopy or upper endoscopy. These are safe painless procedures that are performed while you are completely asleep and takes less than thirty minutes.