Diarrhea refers to a syndrome chiefly manifested by increased frequentcy of defecation, increased liquid consistency of stool, loose stool with undigested grain, even dischargeing thin stool like water. Diarrhea due to functional or organic disease of digestive organ in Western medicine, such as Enteritis , Tuberculosis of intestine, intestinal irritation syndrome, malabsorption syndrome,Allergic diseases, Gastritis, Hepatitis, Hyperyhtroidism can all be diagnosed and treated based on the overal analysis of signs and symptomes.