Eating dragon fruit for constipation is not true; the food has no role in curing the disease. But eating dragon fruit helps to relieve the symptoms of constipation. Dragon fruit is a fruit rich in dietary fiber. Constipation patients eat dragon fruit, dragon fruit in the dietary fiber into the intestinal tract can stimulate the intestinal wall to promote intestinal peristalsis speed, will promote the intestinal tract is softened stool downstream, thus helping to relieve the symptoms of constipation. Patients with constipation, if the stool is dry and hard situation is more obvious, you can eat some dragon fruit and other foods rich in dietary fiber, in addition to bananas, avocados, celery, spinach, sweet potatoes and so on. But for constipation, dietary fiber-rich foods can only play a role in relieving, not treating. For patients with constipation, medication needs to be given according to the specific condition, such as lactulose, polyethylene glycol, keserol and other drugs can be used according to medical advice. If necessary, special treatments such as enemas need to be given.