The fastest and most effective juice for defecation is not true. When feces is formed, it is pushed to the distal colon due to peristaltic movements that cause the colon to contract in all parts of the colon, thus pushing the feces to the distal colon. This peristalsis often starts from the ascending colon, gradually pushed to the left half of the colon, until the feces will be pushed to the sigmoid colon for storage, when the feces in the sigmoid colon into the rectum and the intestinal wall produces a certain amount of pressure, it can be fed back to the defecation center caused by the defecation reflex. There are many ways to promote defecation, such as paying more attention to drinking water in daily life, consuming more celery, bananas, dragon fruit and other foods rich in dietary fiber, which can help the discharge of feces; you can also use medications such as cecrops, mosapride, lactulose and so on, to stimulate the intestinal tract in order to promote defecation. Difficulty in defecation can also be improved by developing good habits such as not playing with your cell phone while going to the bathroom and having bowel movements on time. It should be noted that all of the above medications should be taken under the guidance of a doctor and should not be used without authorization.