The overgrowth of bacteria in the small intestine is prevented by various mechanical and chemical factors which include the constant peristaltic movement of contents along the length of the gastrointestinal tract and the antibacterial properties of gastric secretions, pancreatic secretions and bile. It follows that a disruption of any of these factors could lead to bacterial overgrowth and indeed<unk>  has been found to occur in persons with anatomical anomalies that result in stagnation.<unk>  has also been associated with achlorhydria, dysmotility, fistulae, and strictures. Chronic or high dose opioid therapy may contribute to<unk>  by reducing gastric motility. Due to the disruption of digestive processes by the overgrowth of intestinal bacteria; malabsorption of bile salts, fat and fat-soluble vitamins, protein and carbohydrates results in damage to the mucosal lining of the intestine by bacteria or via the production of toxic metabolites.
Blind loop syndrome
Saal Greenstein syndrome
Cooks syndrome
Ramos-Arroyo syndrome
Shrunken pore syndrome
Constriction ring syndrome
Arts syndrome
Familial dysautonomia