Just like constipation in adults, constipation in children is also very common, which refers to the phenomenon of children having dry stools, or even not having a bowel movement for several days. The causes often include dietary problems and gastrointestinal disorders, etc. If it is not easy to rectify the problem, it is also necessary to think about whether there are other problems. Poor diet and lifestyle are the most common causes of constipation in children. Children’s diet is dominated by high-protein and high-fat foods, with less food containing more soluble dietary fiber such as coarse grains, fruits and vegetables, less exercise and less water intake, all of which are bad habits that can easily contribute to children’s constipation. If the child is in kindergarten or elementary school, there may be some other objective reasons, such as it happens to be the time of defecation habits in kindergarten or in the classroom, due to the psychological pressure not to dare to raise the demand, will make the regularity of defecation disorders, and finally cause constipation. And once constipated children, the water in the stool in the intestinal tract over-absorption, will further aggravate the difficulty of defecation, over time, the intestinal tract also occurs accordingly expansion, to adapt to the thick feces, and even have to resort to drugs in order to exclude, and further the formation of a vicious circle. Of course, there are many other causes of constipation in children, such as congenital megacolon, hypothyroidism, etc. Therefore, constipation is not a small problem.