| | UpToDate Patient information: Abdominal pain (functional dyspepsia) in adults |
 | | A "functional disease," including functional dyspepsia, is a condition characterized by symptoms that mimic those of an organic disorder, such as ulcer, even though thorough evaluation fails to detect evidence of structural abnormalities or tissue damage. |
 | | Abnormalities of motor functioning may lead to delayed emptying of stomach contents into the duodenum, the upper region of the small intestine (ie, delayed gastric emptying or gastroparesis), resulting in nausea and vomiting, an early sense of fullness with eating (satiety), and bloating. |
 | | Experts indicate that functional dyspepsia is best described as the result of a complex interaction of underlying physiological factorsreferring to physical processes and functioning of the bodyas well as psychosocial factors. |
| www.patients.uptodate.com /topic.asp?file=digestiv/7283 (2524 words) |