Pediatric constipation, like diarrhea, is one of the more common symptoms. How to determine whether the child is constipated, mainly from the quantity and quality of stool to determine. Normal pediatric daily bowel movements can be a big difference, some can be several times a day stool, some can be every 5-3 days an ambassador, as long as there is a certain amount of stool, not very dry and not dilute, and at the same time no discomfort symptoms, are normal. Even if the number of ambassadors is low, but the quality and quantity of stools are not abnormal, and there are no symptoms, it can not be considered abnormal. If the stools are dry, small in quantity and difficult to pass, although there may be 2-3 times a day, but the total amount may be less than usual, it should also be regarded as constipation. If there is a decrease in appetite, abdominal distension and frequent bowel movements, it should be regarded as constipation. If the bowel movement is usually more regular, suddenly more than two days without bowel movement, especially with abdominal pain or bloating, it should be regarded as constipation, and we should look for the cause in time. Constipation can be caused by intestinal pathology, but also by diet, spirit and habits and other factors. Newborns should have normal meconium 24-36 hours after birth, if there is no meconium or a small amount of abnormal meconium, it is abnormal, and should be emphasized on congenital digestive malformation and meconium peritonitis and other diseases. Many intestinal pathologies can lead to constipation or absence of bowel movement, commonly including intussusception, various causes of intestinal obstruction, incarcerated hernia and congenital hypertrophic pyloric stenosis. Congenital megacolon is another disease caused by abnormal innervation of the colon. The main manifestations are stubborn constipation, no bowel movement for a few days or even 1 week to 1 month, abdominal distension like a drum, and vomiting. Although the children can eat, most of them have poor nutritional status, and swelling and anemia often occur. Once the child has a bowel movement, the amount is very large and the abdominal distension disappears, but it recurs later. In severe cases, constipation occurs in the neonatal period, and there is no meconium in the first 2-3 days of life. Vomiting and abdominal distension occur, and the meconium is discharged by enema, but the constipation and abdominal distension reappear after 1-2 days. Most of this disease requires surgical treatment. Constipation can occur in children with insufficient food, when the child often cries because of hunger and does not gain weight at the same time. I have seen some parents do not understand the use of milk powder, only half a kilogram of milk powder per month to the child, resulting in malnutrition and constipation. If children drink too little water, especially in summer, can also make the stool too dry and constipation. Fever can cause a reduction in diet and increased water loss from the respiratory tract, can cause temporary constipation. Food is too refined, lack of fiber, such as eating refined rice, refined noodles, meat, eggs and chocolate, lack of coarse grains and more fiber-containing fruits and vegetables, can also cause constipation. Defecation depends on the nervous system, rectal memory accumulation of feces after stimulation of the peripheral nerves of the intestinal wall, generating impulses, into the nerve center, and finally by the brain to send a signal, in order to appear defecation action. Adults can be temporarily inhibited from defecating because of work or lack of a suitable place to do so. There is a normal habit of defecation, which is usually regular. Children should practice and develop the habit of having regular bowel movements. If you do not develop the habit of regular defecation, or kindergarten teachers and parents do not allow children to defecate in a timely manner, or due to excessive playfulness and consciously inhibit the urge to defecate, over time, the peripheral nerves in the intestinal tract to stool stimulation sensitivity decreases, the accumulation of feces in the intestinal tract for a long period of time, the water is absorbed, and the formation of constipation. Frequent occurrence is called habitual constipation. Children because of diet, spirit and habit causes constipation, can be temporarily placed in the anus with a soap head or glycerin pessary, and hand pinch the anus on both sides of the buttocks, so that the soap or glycerin pessary dissolved, you can have fecal discharge. You can also use corkscrew to inject into the anus to pass stool. Liquid paraffin or heat-sterilized sesame oil can also be taken at a dose of 0.5 ml per kg of body weight at bedtime. Do not use other laxatives easily, because the digestive and nervous systems of children are not as well-functioning as those of adults, and laxatives sometimes lead to diarrhea. When it is more difficult to solve, the hospital can use soap and water or saline cleaning enema method to wash out the feces. Due to dietary causes of constipation, should adjust the diet in order not to make the baby hungry, the amount of water should be enough for the baby needs, children’s diet to increase some coarse grains, fiber-rich vegetables and fruits, and so on. From infancy, we should practice the habit of regular defecation, and kindergarten teachers and parents should not allow children to hold their feces and urine.