Foods rich in crude fiber and oil can be laxative, mainly oats, brown rice, buckwheat, corn, sorghum, soybeans, sweet potatoes, purple potatoes, carrots, radishes, leeks, onions, garlic, celery, rape, cabbage, amaranth, spinach, horsetail, kelp, fungus, enoki mushrooms, shiitake mushrooms and other vegetables and bananas, apples, oranges, snowdrops, pineapples, cherries, figs, dragon fruit, kiwi fruit and other fruits. The main ones rich in oil and fat are dashi, sesame oil, black sesame seeds, hazelnuts, spicy wood seeds, pine nuts, walnut kernels, peanuts and almonds. In addition, honey, almond, peach kernel, cassia seeds, fire hemp kernel, yu plum kernel, cistanche, angelica, rhubarb and senna have laxative effect. Patients can choose to consume the above foods or medications according to their condition to improve constipation symptoms.