Constipation when the stool a grain, relatively dry, mainly due to insufficient fiber intake. Be sure to supplement fiber in the usual diet, you can eat the following foods: 1, green leafy vegetables with high fiber content, such as spinach and other greens recommended to eat often; 2, usually eat more fruit, many fruits in addition to water is also rich in vitamins, minerals, can promote intestinal peristalsis, conducive to defecation; 3, more patients do not want to eat coarse grains, especially sweet potatoes, corn, some patients think that the particles are coarse, difficult to swallow But the fiber content is high; 4, can take probiotics, can regulate intestinal flora, promote defecation.