Endoscopy is a test in which a lighted viewing tube (endoscope) is passed down the throat (esophagus), through the stomach, and into the upper
part of the small intestine (duodenum).
After the viewing tube is in the small intestine, it can be used to
obtain a sample of the contents of the small intestine (duodenal fluid). This
sample can then be tested to see if the Giardia parasite
I didn't know I had food intolerances until I was in my 30s.
I'd had trouble with my digestion since birth. As a baby I had a lot of gas and would often get diarrhea. My mother thought it was because I was a preemie. Those stomach problems eased by the time I was 6 months old, and I was relatively healthy as a kid. But then what appeared to be seasonal allergies kicked in. In fact, by the time I hit puberty, my symptoms were so bad that my eyes would often seal shut with crust, and I had terrible...