Dragon fruit to a certain extent can assist in relieving constipation, but for constipation does not have a therapeutic effect. Dragon fruit is a tropical fruit, contains a lot of water and fiber, after consumption can increase the water content of feces, can enhance the gastrointestinal tract peristalsis, thus playing an auxiliary effect of laxative. At the same time, dragon fruit also contains a lot of nutrients, including pectin, cellulose and trace elements, etc., after consumption can be in the intestinal surface to form a layer of pectin, pectin has a strong lubrication, and cellulose can absorb water, so that the stool to maintain a fluffy state, can stimulate intestinal peristalsis, so that the stool is easy to discharge, and therefore can play a supporting laxative effect. But dragon fruit is a food, no treatment of disease, the above effects are relatively minor. If you have serious constipation symptoms, you should go to the hospital in time to see a doctor, after the cause is clear to give standardized treatment.