The patient’s stool becomes one by one, which indicates constipation, mostly related to less water in the stool and longer retention time of stool in the intestine. The causes of this condition include slow bowel movement, colon polyps and chronic colitis. In addition, colon cancer is also possible and requires e-colonoscopy to clarify. If the e-colonoscopy suggests chronic colitis, it needs to be regulated with rectified bowel or pefixan plus compound glutamine enteric granules. If the e-colonoscopy clearly indicates a polyp in the colon, endoscopic electrocoagulation and electrosurgery of the polyp will be required. If the examination excludes intestinal lesions, the slow peristaltic movement of the intestines can be considered, so you can use lactulose oral solution or sodium phosphate laxative. If there is a tumor inside the colon, surgery or chemotherapy will be required.