Eat sweet potatoes help defecation, sweet potatoes are coarse grains, containing more crude fiber, can promote intestinal peristalsis, so it can relieve constipation symptoms, can help defecation, but eat sweet potatoes in moderation, should not be excessive consumption of red veggies, so as not to cause abdominal distension due to indigestion, and even abdominal pain symptoms. General sweet potato eating recommended steamed sweet potato or sweet potato porridge, especially the existence of gastrointestinal disorders, it is not recommended to eat fried red veggies or other stimulating flavors sweet potato, for the existence of constipation, it is recommended that oral laxative drug therapy when necessary, such as lactulose oral solution or to the hospital, with the doctor to check the electronic colonoscopy, to help clarify the diagnosis and treatment.