Functional Dyspepsia Consensus Team of the Asian Neurogastroenterology and Motility Association and the Asian Pacific

Dyspepsia is a syndrome consisting of epigastric pain, burning, fullness, discomfort, early satiety, nausea, vomiting and belching. Functional dyspepsia (FD) is diagnosed if upper gastrointestinal endoscopy does not show structural abnormality ex-plaining these symptoms. 8%-30 % and 8%-23 % of Asian people suffer from of uninvestigated dyspepsia and FD, respectively. Most patients with uninvestigated dyspepsia are found to have FD. Patients with FD are usually young and there is no predi-lection to any gender. Overlap of FD with other functional bowel diseases such as irritable bowel syndrome and gastro-esophageal reflux disease is common in Asia. Cultural difference in reporting of symptoms of dyspepsia is well-known. Moreover, dietary factors, socio-cultural and psychological issues, gastrointestinal infection including that caused by Helicobact-er pylori, frequency of organic diseases such as peptic ulcer and gastric cancer responsible for dyspeptic symptoms in the study population may also influence epidemiology of dyspepsia. There is considerable heterogeneity in the above issues among dif-ferent Asian countries. More studies on epidemiology of FD are needed in Asia