The symptoms of functional<unk>  are directly caused by two major<unk> cal abnormalities in gastric motility and visceral sensitivity. These mechanisms occur in patients who have acquired excessive responsiveness to stress as a result of the environment during early life, genetic abnormalities, residual inflammation after gastrointestinal infections, or other causes. The process may be modified by factors including psychophysiological abnormalities, abnormal secretion of gastric acid, Helicobacter pylori infection, diet, and lifestyle.
Dyspepsia pathophysiology
Stomatitis pathophysiology
Peptic ulcer pathophysiology
Gastritis pathophysiology
Crohn's disease pathophysiology
Stomach cancer pathophysiology
H.pylori gastritis pathophysiology
Mallory-Weiss syndrome pathophysiology