Constipation is a common clinical symptom. When many patients go to the hospital, their only complaint is dry stools and straining to defecate. The onset of constipation can be temporary, and when the cause of constipation is eliminated, the stool becomes normal. If constipation is prolonged, it can lead to a series of adverse reactions such as dizziness, headache, loss of appetite, abdominal distension, abdominal pain, and fatigue. Constipation is very common, and many people do not care, but these hazards of constipation do you know? 1, induced hemorrhoids and colonic polyps constipation when defecation force eschews force, rectal pressure increases, blocking venous reflux, so that the normal anal cushion congestive hypertrophy and repeatedly displaced to the distal side, where the fiber interval gradually relaxed, until fracture and accompanied by venous plexus stasis, expansion, fusion, and even interspersed with small arteriovenous fistula, and finally the formation of hemorrhoids. Long-term constipation, the coarse residue in the stool and harmful substances long-term stimulation of intestinal mucosa epithelial hyperplasia formed polyps. 2, induced cardiovascular disease episodes constipation with cardiovascular disease in elderly patients, excessive force during defecation, will make the blood pressure rise, increased oxygen consumption of the body, easily induced cerebral hemorrhage, angina pectoris, myocardial infarction, in serious life-threatening. 3, the formation of abdominal hernia constipation, due to excessive force of defecation, the sudden increase in intra-abdominal pressure, intra-abdominal organs such as small intestine through the abdominal wall weakness to the body surface protrusion, can form a ventral hernia. 4, damage to beauty long-term constipation, reabsorption of harmful substances into the blood, resulting in rough skin, lusterless, the formation of acne, hyperpigmentation, facial pigmentation, etc.. How to prevent and control constipation? Constipation patients need to adopt comprehensive treatment according to the severity, cause and type of constipation, in order to restore normal defecation physiology. Pay attention to life treatment, develop reasonable dietary habits, such as increasing dietary fiber content, increasing water intake to enhance the stimulation of the colon, and develop good defecation habits, such as morning defecation, timely defecation when there is a bowel movement, avoiding forceful defecation, and increasing activities at the same time. 1.Avoid eating too little or too fine food, lack of residue, and reduced stimulation of colonic motility. 2, avoid disturbance of bowel habits: failure to defecate in a timely manner due to mental factors, changes in lifestyle patterns, long-distance travel overexertion, etc. can easily cause constipation. 3, avoid the abuse of laxatives: the abuse of laxatives will make the intestinal sensitivity is weakened, the formation of dependence on certain laxatives, aggravating constipation, should be under the guidance of a doctor reasonable use of laxatives, long-term constipation patients are best to use slow laxatives. 4, reasonable arrangements for life and work, to achieve a combination of work and rest. Appropriate physical and cultural activities, especially the exercise of the abdominal muscle is conducive to the improvement of gastrointestinal function, more important for the sedentary and less active and highly concentrated brain workers. 5, to develop good bowel habits, regular daily defecation, forming a conditioned reflex, to establish a good bowel pattern. Do not ignore when you have the intention to defecate, defecate in a timely manner. The environment and posture of defecation should be as convenient as possible, so as not to inhibit the desire to defecate and destroy the defecation habit. 6. Patients are advised to drink at least 6 glasses of 250 ml of water daily, perform moderate exercise, and develop the habit of regular bowel movements (2 times a day for 15 minutes each time). The action potential activity of the colon is enhanced after waking up and after meals, which pushes the stool to the distal end of the colon, so morning and after meals are the easiest time to defecate. 7, timely treatment of anal fissures, perianal infections, uterine adnexitis and other diseases, laxatives should be applied with caution, do not use strong stimulation methods such as bowel cleansing.