1.What are the causes of constipation in the elderly? (1) Dietary factors: the elderly teeth loss, like to eat low residue fine food, or a few patients to facilitate the provincial, simple diet, lack of crude fiber, so that the volume of feces, viscosity increased in the intestinal movement slows down the excessive absorption of water and lead to constipation. (2) defecation habits: some older people do not develop the habit of regular defecation, often ignoring the normal intention to defecate, resulting in defecation reflex is inhibited and cause constipation. (3) Reduced activity: the elderly due to certain diseases and obesity factors, resulting in reduced activity, especially because of the disease bedridden or wheelchair patients, due to the lack of locomotor stimulation to promote the movement of feces, often prone to constipation. (4) suffer from depression, anxiety, obsessive-compulsive disorder and other psychological disorders are prone to constipation. (5) Intestinal lesions: intestinal lesions include inflammatory bowel disease, tumor, hernia, rectal prolapse, etc. Such lesions lead to functional outlet obstruction causing defecation disorder. (6) Systemic lesions: systemic diseases include diabetes mellitus, uremia, cerebrovascular accident, Parkinson’s disease, etc. (7) Medical origin: abuse of laxatives. 2.Why are children prone to constipation? First of all, children’s self-restraint is poor, easy to eat partiality (picky), the diet tends to favor high-sugar, high-fat food, lack of fiber-rich fruits and vegetables. Secondly, parents do not have a full understanding of reasonable diet for children, and they often respond to their children’s requests, failing to cultivate good eating habits in children. Furthermore, milk-fed children because of the high protein content of cow’s milk, calcium and phosphorus ratio is not appropriate easy to lead to dry stools. Finally, children with a family history of obesity are prone to overweight or obesity, in the lack of exercise on the basis of constipation is more likely to occur. 3.What is the season of constipation? Autumn and winter is the high incidence of constipation. The weather is dry in the fall and winter, the human body is easy to lose water, if there is no timely replenishment of water, it is easy to cause constipation. Moreover, as the temperature is lower in fall and winter, excessive intake of high fat and high sugar foods and reduced intake of fruits and vegetables are unhealthy eating habits that can easily cause constipation. There is another important reason is that the fall and winter temperatures lower, people’s activities and exercise time is also reduced, the body’s metabolism has become slow, after a long time, too much accumulation of waste in the body will lead to habitual constipation. 4, what is the harm of constipation? Constipation is a common complex clinical symptom, not a disease, mainly refers to the reduction in the number of bowel movements, fecal matter, fecal matter, dry feces, defecation effort. Although it is not a disease, it is harmful if not treated in time. (1) cause brain function is impaired: constipation metabolites long stagnation in the digestive tract, will produce a large number of harmful substances, such as methane, phenol, ammonia, etc., some of these substances diffuse into the central nervous system, interfere with brain function, the prominent manifestation is memory loss, distraction, slow thinking, etc.. (2) triggering cardiovascular and cerebrovascular diseases: clinically, there is an increasing trend of cardiovascular and cerebrovascular diseases due to constipation and increasing abdominal pressure by holding the breath to defecate. Such as induced angina pectoris, myocardial infarction, cerebral hemorrhage, stroke and sudden death. (3) lead to gastrointestinal nerve dysfunction: constipation, fecal retention, absorption of harmful substances can be caused by gastrointestinal nerve dysfunction resulting in loss of appetite, abdominal distension, belching, bitter taste in the mouth, anus venting more performance. (4) lead to sexual life disorders: this is due to each long time hard defecation, so that rectal fatigue, anal contraction too tight and the pelvic floor spasmodic contraction, so that not ejaculation or loss of libido, no orgasm of sexual life and so on. (5) Causing fecal ulcer: the harder fecal mass presses the intestinal lumen to make the intestinal lumen narrow and the surrounding structure of the pelvis, which hinders the expansion of the colon, and pressurizes the rectum or colon to form fecal ulcer, and in serious cases, it can cause intestinal perforation. (6) Causing colon cancer: it may be caused by constipation and the carcinogens in the intestine can not be eliminated for a long time, according to the data, about 10% of the severely constipated people suffer from colon cancer. (7) Cause anorectal diseases: when constipation, defecation is difficult and feces is dry, which can directly cause or strengthen anorectal diseases. Such as proctitis, anal fissure, hemorrhoids and so on. (8) easy to cause gynecological diseases: easy to make women have dysmenorrhea, vaginal cramps, and production of urinary retention, urinary tract infection and other symptoms. 5.Postpartum constipation on the patient itself what is the impact? (1) Lack of appetite: constipation slows down intestinal emptying, slows down metabolism, new mothers will feel bloated in the abdomen, fullness and discomfort after meals, lack of appetite. Long-term lack of appetite can cause malnutrition, anemia, and decreased immunity. (2) Accumulation and absorption of toxins: feces in the intestinal tract stays too long, some of the harmful toxins gradually accumulate, and inevitably some of them are absorbed by the intestinal wall, and they enter the body through the venous circulation, causing mild toxemia, which not only affects the new mother’s health, but also affects the baby’s health through breastfeeding. (3) Obstruction of pelvic blood circulation: the slowing down of intestinal peristalsis slows down the pelvic blood circulation, which is not conducive to the recovery of the reproductive system of new mothers after childbirth, and also affects the recovery of postpartum sex life. (4) anal fissure and hemorrhoids: the persistence of constipation causes pelvic and perianal blood reflux obstacles, most of which will form different degrees of anal fissure and hemorrhoids, and the high incidence of hemorrhoids in women, a considerable proportion is due to postpartum constipation. (5) emotional irritability: constipation will make people anxious and angry, this is a lot of people have experienced. New mothers themselves in a psychologically sensitive period, constipation is more likely to cause an abnormal emotional response, upset, impatient and irritable, sometimes angry, sometimes sad, so constipation can be said to be a potential enemy of mental health. (6) Endocrine changes: long-term constipation causes changes in the endocrine system, menstrual cycle disorders, skin pigmentation, chloasma and acne, etc., but also make the breast tissue cell mutation, increasing the possibility of inducing breast cancer. Scientific statistics show that women with chronic constipation are 20% more likely to develop breast cancer than normal women.