There are many causes of increased stool frequency, the more common are the following: 1, infectious diarrhea, generally abdominal pain, diarrhea, watery stools, often accompanied by fever symptoms, such as bacterial enteritis, viral enteritis, fungal enteritis and tuberculosis enteritis. 2, functional gastrointestinal disease, often due to diet, gastroscopy is not abnormal. 3, intestinal polyps, intestinal polyps, intestinal polyps affect the function of the intestine, also often cause changes in bowel habits, some will cause increased stool frequency. 4, malignant tumors of the intestine, often also cause increased stool frequency, but some may not appear these symptoms. When they affect the function of the intestine, they often cause changes in bowel habits, and some of them cause an increase in the number of stools. 4. Malignant tumors of the intestine often cause an increase in the number of stools, but some of them may not show these symptoms, but may show symptoms of constipation, inability to pass stools, and obstruction.