Functional gastrointestinal disorders, also called gastrointestinal dysfunction, or gastrointestinal neurosis, is a general term for a group of gastrointestinal syndromes, with gastrointestinal tract motility disorders as the main cause, and must be diagnosed only after examination to exclude organic causes. The main manifestations of functional gastrointestinal disorders are upper gastrointestinal discomfort, pain, abdominal distension, eructation, nausea, vomiting, etc.; lower gastrointestinal symptoms, such as abdominal discomfort, poor defecation, constipation, diarrhea, and increased exhaustion.
Rome III criteria for functional gastrointestinal disorders
A Functional esophageal disorders
A1 Functional heartburn
A2 Functional chest pain presumed to originate from the esophagus
A3 Functional dysphagia
A4 Hysterical globus pallidus
B Functional gastroduodenal disorders
B1 Functional dyspepsia
B1a Postprandial discomfort syndrome
B1b Epigastric pain syndrome
B2 Belching
B2a Aerophagia
B2b nonspecific excessive belching
B3 nausea and vomiting
B3a chronic idiopathic nausea
B3b Functional vomiting
B3c Cyclic vomiting syndrome
B4 adult regurgitation syndrome
C functional intestinal disorders
C1 irritable bowel syndrome
C2 functional abdominal distension
C3 functional constipation
C4 functional diarrhea
C5 non-specific functional enteropathy
D functional abdominal pain syndrome
E Gallbladder and sphincter of Oddi dysfunction
E1 Gallbladder dysfunction
E2 bile duct sphincter of Oddi dysfunction
E3 pancreatic sphincter of Oddi dysfunction
F functional anorectal disorders
F1Functional fecal incontinence
F2Functional anorectal pain
F2a chronic anal pain
F2a1 anal raphe syndrome
F2a2 nonspecific anorectal pain
F2b Spasmodic analgia
F3 Functional defecation disorder
F3a uncoordinated defecation
F3b Inadequate propulsion of defecation
G Functional disorders of the newborn and infant
G1 Neonatal regurgitation
G2 Neonatal regurgitation syndrome
G3 Cyclic vomiting syndrome
G4 Neonatal colic
G5 Functional diarrhea
G6 neonatal dyspareunia
G7 Functional constipation
H Functional disorders in children and adolescents
H1 Vomiting and gagging syndrome
H1a Adolescent regurgitation syndrome
H1b Cyclic vomiting syndrome
H1c Gas-swallowing disorder
H2 Functional gastrointestinal disorders associated with abdominal pain
H2a Functional dyspepsia
H2b irritable bowel syndrome
H2c Abdominal migraine
H2d Functional abdominal pain in children
H2d1 Functional abdominal pain syndrome in children
H3 Constipation and fecal incontinence
H3a Functional constipation
H3b Non-retentive fecal incontinence
The above lists 28 FGIDs in adults and 17 in children.These are symptom-based diagnostic criteria.