A child’s inability to poop may be due to functional constipation, congenital megacolon, hiatal hernia, etc. General measures, medications, and surgical treatments should be taken to address the specific causes. 1. Functional constipation: when the child’s diet lacks dietary fiber and water, it is easy to affect intestinal peristalsis, resulting in functional constipation and failure to poop. Generally, timely correction of bad dietary habits, eat more vegetables, fruits, grains, and increase the amount of water consumption can be improved, but if the constipation is serious, you need to use open-end lozenges under the guidance of a doctor to help defecation. 2. Congenital megacolon: Organic constipation and abdominal distension are the typical symptoms of this disease. Children need to use laxatives such as lactulose as prescribed by the doctor to maintain daily bowel movements, and may need to use glycerin suppositories for anal plugs or 0.9% saline enemas. For conservative treatment is ineffective or critical condition need to take enterostomy, rectal end anastomosis and other surgical treatment. 3. Hiatal hernia: common symptoms include abdominal pain, constipation, abdominal distension and so on. If the child is less than 1 year old, there is a possibility of self-healing, usually can use the abdominal band pressure treatment, is conducive to the relief of symptoms. For the rest of the children, traditional hernia repair, laparoscopic tension-free hernia repair and other surgical treatments are needed if necessary to relieve symptoms. It is recommended that children who are unable to poop should go to the hospital promptly and cooperate with the doctor for active treatment. The above medications should be used in accordance with medical advice.