1, do not ignore the bowel movement. To start from a child, from the beginning should be taken seriously, once the intention to defecate should be promptly, do not hold back the stool. 2, life and defecation should be regular, to establish the conditioned reflex of defecation, to develop the habit of regular defecation. 3, environmental changes, such as business trips, poor sanitation and other easy to cause constipation, you can bring some fruit, laxative. 4, to avoid sedentary, appropriate to participate in physical exercise to strengthen the colon vitality, promote intestinal peristalsis. 5, anorexia or too little food intake, especially too little fiber-containing food can cause constipation, so you should eat fresh vegetables, appropriate consumption of wheat bran or whole wheat flour. However, it is not applicable to patients with organic intestinal obstruction. 6, drink more water. Fiber needs to absorb water in order to play a laxative role in the intestinal cavity. Therefore, you can drink 3,000 to 5,000 ml of water daily. 7, quit the habit of taking laxatives for a long time. Long-term application of laxatives can aggravate constipation. In addition, certain drugs such as opium, calcium salts, aluminum salts and psychiatric drugs can cause constipation, should be noted. 8, organic lesions should be timely diagnosis and treatment, such as colorectal tumors, giant colon, etc.. Systemic diseases, such as lead poisoning, hypothyroidism, electrolyte disorders, mental depression can cause constipation, should treat the original disease. 9, maintain a regular life, adequate sleep and cheerful and optimistic mood, is important to prevent constipation.