According to the etiology, type and degree of constipation to choose the appropriate laxative drugs, on the other hand, should be less toxic, side effects and drug dependence as the principle, often selected such as bulking agents (such as wheat bran, Ocalan, etc.) and osmotic laxatives (such as polyethylene glycol 4000, lactulose, sorbitol). For slow-transmission constipation, prokinetic agents, such as cisapride or mosapride, can also be added. It should be noted that in patients with chronic constipation, long-term application or abuse of stimulant laxatives such as senna, rhubarb, castor oil, aloe vera, and phenolphthalein should be avoided. For patients with fecal impaction, clean enema once or combine with short-term use of stimulant laxatives to release the impaction. After decongestion, bulking agents or osmotic drugs are then used to keep the bowel movement open. Curettage and glycerin suppositories have the effect of softening stool and stimulating defecation. Compounded carrageenan is effective in the treatment of constipation of hemorrhoidal origin. Chinese herbal medicine has significant efficacy in the treatment of constipation. How to prevent habitual constipation: 1, the diet must have the right amount of fiber. 2, a certain amount of vegetables and fruits should be eaten every day, such as 1-3 bananas 1 hour before meals. 3, the main food should not be too fine, to eat appropriate coarse grains. 4.Drink a glass of light salt water or honey water in the morning on an empty stomach, with abdominal massage, can strengthen the laxative effect. Throughout the day should drink more cool water to help laxative. 5, to carry out appropriate physical activities, strengthen physical exercise, such as supine leg bending, squatting, cycling, etc. can strengthen the abdominal movement, promote gastrointestinal peristalsis, help promote bowel movements. 6, to develop the habit of regular bowel movements. 7, keep a relaxed mood, life should be regular. Six foods that help improve constipation: cooked bananas, walnuts, grapefruit, grapefruit, sweet potatoes, brown rice, apples.