Many parents ask about constipation in children, so I will publish some scientific tips on the prevention and treatment of constipation in the near future, and I hope you will stay tuned. Of all constipation cases, constipation in small children is more difficult to deal with, but functional constipation (i.e., no intestinal pathology) in childhood can be treated and prevented through bowel habit training. Defecation habit training is the learning process of the defecation “skill” system, which is reflexive in infancy, and if DHP is given to children early, they can enter conscious defecation sooner. According to the survey, 42.10% of children with constipation have never undergone DHP, or their bowel training is extremely irregular. Therefore, standardized DHP can effectively prevent functional constipation. What is Defecation Habit Training (DHP)? Defecation itself is a physiological activity, i.e. a behavior that does not need to be learned and is innate. It is controlled by the nerves, the control of the bowel organs and the coordination of the muscles around the anus. The DHP is an artificial and intensive training program for the child, so that the coordination of the three is artificially controlled and formed into a habit (routine). Training methods Child-oriented “progressive training”, focusing on the child’s preparation for defecation, allowing the child steroid training repeated time, according to the child’s interest and ability to train gradually. 1, potty preparation: choose brightly colored, attractive-looking apparatus, placed in the child’s easy-to-use location (not necessarily in the toilet), encourage the child to sit on the potty for a while every day. The commode should be at an appropriate height so that both knees are above the buttocks and both feet can land and learn to defecate with force. 2. Choose a suitable time (e.g., after waking up from bed or after a meal) and explain to the child that this is the right time to go to the toilet. The choice of time is mainly based on the “early postprandial response” and “late postprandial response” of the gastrocolonic reflex, generally 30-60 minutes after a meal, 5-10 minutes each time is more appropriate, avoid squatting and sitting for a long time during defecation and excessive force that leads to anal fatigue 3. If you have a successful bowel movement, parents should praise you to boost your self-confidence. If it fails, do not reprimand, should eliminate the child’s nervousness. Training may appear backward phenomenon, such as forced to hold back the desire to defecate, especially the baby itself has constipation, due to defecation may cause anal pain or bleeding, the more reluctant to defecate. At this time, consider the use of cotton swabs, soap head, open cork, etc. to assist defecation, and parents should not be anxious. 4, after about 1 week of training, children are able to defecate regularly as required to reduce fecal retention in the rectum, thereby preventing and treating constipation. 5.Starting age: children can understand the meaning of bowel training and can cooperate, the suitable age is about 18 months. Of course, for the baby’s constipation, the training to deal with bowel habits also includes the adjustment of diet, increase water intake, increase the amount of activity and other joint efforts, but in the prevention of constipation, bowel function training is still very important.