Massachusetts General Hospital
The goal of this study is to establish a prospective observational cohort of individuals with functional GI disorders (functional constipation, irritable bowel syndrome, chronic nausea, functional diarrhea, and functional dyspepsia, as well as a subset of these individuals starting neuromodulation for their functional GI disorder) and collect clinical information and specimens. This information will be used in order to establish a patient registry with detailed clinical data and a specimen repository for future research as well as to specifically identify environmental, genetic, physiological, and psycho-social factors associated with functional GI disorders.
Inclusion Criteria: * 18 years of age or older * Rome IV criteria for a functional GI disorder Exclusion Criteria: * Acute illness * Known bleeding disorder * Awaiting transplantation * Known diagnosis of Inflammatory Bowel Disease * Use of antibiotics in last 2 months
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