After drinking a laxative for a colonoscopy, in most cases, the stool can be emptied 3-6 times, and in constipated people, sometimes there is still fecal sludge after 10 bowel movements. After drinking laxatives need to make the feces show watery until. Some people start to have diarrhea about half an hour after drinking the laxative, and it can be finished in 3-4 times, while some people need 5-6 times or even more than 10 times. The purpose of drinking laxatives for colonoscopy is to clean the intestines so that there is no fecal residue in the intestines, and the intestinal mucosa as well as the lesions can be clearly seen during the examination, and the amount of laxatives usually needs to be increased for those who have constipation symptoms themselves. When suffering from intestinal diseases need to improve living habits, such as pay attention to dietary hygiene, quit smoking, quit drinking, need to pay attention to regular diet, should not eat too much stimulating food, such as pepper, seafood and so on. Enteroscopy taking laxatives should be used under the guidance of a doctor.