In
Rome IIII( diagnostic system, disorders associated with chronic
constipation include functional
constipation, opioid-induced constipation,
irritable bowel syndrome with predominant
constipation and functional
defecation disorders, each disorder has the relative characteristics of clinical manifestations and underlying pathophysiology.
Rome IIII( committee modified the diagnostic criteria based on current
research achievements, and recommended to make the
diagnosis of functional
constipation disorders with minimal
laboratory test and with indications for
colonoscopy and pathophysiological tests.
Understanding the clinical manifestations and pathophysiology of functional
constipation disorders are helpful for clinicians to apply the
Rome diagnostic criteria and improve the accuracy of
diagnosis and
treatment for the
patients with chronic
constipation.