A child’s bowel movement after eating may be caused by improper feeding, underdevelopment of gastrointestinal function, intestinal diseases and so on. 1. Improper feeding: If the child eats more or eats faster, it will make the stomach more full, stimulating the rapid peristalsis of the stomach and intestines, thus appearing the phenomenon of defecation after eating. 2. Inadequate development of gastrointestinal function: If the child is relatively young, it may be caused by the gastrointestinal function is not yet fully developed. It is recommended to feed small amount of times and add supplemental food at the right time to promote the soundness of the baby’s gastrointestinal function. 3. Intestinal diseases: such as common chronic colitis, ulcerative colitis, Crohn’s disease, irritable bowel syndrome, etc., may cause the child to have a bowel movement after eating. It is mainly due to the dysfunction of the stomach and intestines, so that intestinal peristalsis is abnormal. Children defecate after eating, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.