Functional dyspepsia (FD) is a common gastrointestinal disorder with an important impact on quality of life. There is a paucity of updated data on the prevalence of FD in rural areas of Bangladesh. The present study will be carried out to find the prevalence of FD in a community in rural Bangladesh. It also assesses potential risk factors. Eligible participants will first be evaluated for symptoms by a clinical interview using the standardized Rome IV functional dyspepsia questionnaire. Those who meet Rome IV criteria will then have an upper gastrointestinal endoscopy to exclude underlying organic diseases to establish a definitive diagnosis. Eventually patients with normal endoscopic findings will be diagnosed as having functional dyspepsia. This allows the accurate calculation of disease prevalence. Researchers will gather demographic information, lifestyle habits, and dietary patterns. The results will give important baseline data on rural FD burdens. Such data can inform community health care interventions.