gastrointestinal disorders
Dyspepsia
Etiology of Dyspepsia
There are several common causes of dyspepsia ( see Table: Some Causes of Dyspepsia ). Many patients have findings on testing (eg, duodenitis, motility disturbance, Helicobacter pylori Infection , lactose deficiency, Nonulcer dyspepsia (functional dyspepsia)is defined as dyspeptic symptoms in a patient who has no abnormalities on physical examination and upper gastrointestinal (GI) endoscopy and/or other evaluation (eg, laboratory tests, imaging). 