Long-term bowel irregularities and diarrhea, generally consider the possibility of irritable bowel syndrome, intestinal tumors, ulcerative colitis, etc., need to be specifically analyzed. 1. Irritable bowel syndrome: the main clinical symptom is to cause changes in bowel habits, accompanied by abdominal pain, generally no organic lesions, and external adverse stimuli have a relationship, such as cold, unclean diet and emotional stimulation. 2. Intestinal tumors: for example, colorectal cancer, colonic adenoma and malignant lymphoma of small intestine and other intestinal tumors can cause long-term diarrhea and unformed stools, and may also cause fever and blood in stool. 3. Ulcerative colitis: the typical symptom is that the shape of stool changes, once not actively treated, it will cause long-term diarrhea, unshaped stools, usually mucopurulent hemorrhagic disease, some patients will also be accompanied by fever, abdominal pain and malnutrition symptoms. Long-term unshaped stools and easier diarrhea may also be other reasons, such as Crohn’s disease, etc., it is recommended to go to the regular hospital in a timely manner to receive further examination, according to the results of the targeted treatment.