Babies who do not poop for a few days may be caused by poor digestion, insufficient intestinal motility and organic diseases, which can be treated by changing the amount of food intake, improving the diet structure, medication or surgery. Some babies may have prolonged bowel movement intervals due to poor digestion or insufficient food intake, which can generally be relieved by increasing or decreasing the amount of food consumed under the guidance of a doctor. If the child’s diet structure is single, food containing dietary fiber to eat less, or not enough water, will lead to intestinal dynamics, causing the child defecation difficulties, usually can give the baby to eat some food rich in dietary fiber as well as drink more water, but also through the use of bifidobacteria, bacillus licheniformis, and other probiotics to improve the drug. If the baby regularly has no bowel movement for several days, it is necessary to check whether there is congenital megacolon, anal atresia and other organic diseases. Surgery should be considered if such disorders are present. If your baby has frequent constipation, you should consult a doctor in time to find out the cause of the problem, and treat the symptoms under the guidance of a professional doctor. The above medications should be used in accordance with medical advice.