Irritable Bowel Syndrome is a chronic, recurrent attacking with intestinal movement dysfunction syndrome which is difficulty to be explained by anatomy, pathological and chemical examination. It is an intestinal functional disorder which excludes structural disease. It includes a serial of symptoms of abdominal pain, abdominal distension, ragouts, change of frequency of defecation and abnormal stool, mucous stool, and defective stool etc which related to defecation clinically. It attacks persistently or int...