Depending on the accompanying symptoms, infants without bowel movements should choose to go to Pediatric Gastroenterology, Gastroenterology Surgery, Neonatology, Pediatric Endocrinology, and are advised to seek medical attention in a timely manner. Infant constipation, mostly caused by intestinal obstruction, congenital megacolon, intestinal tuberculosis, Crohn’s disease and other digestive disorders, can be accompanied by crying, loss of appetite, early satiety and other uncomfortable symptoms, such as intestinal tuberculosis, Crohn’s disease, should go to the pediatric gastroenterology department. For intestinal obstruction, gastroenterology is recommended, and for congenital megacolon, neonatology is recommended. In addition, some children may not have bowel movements due to endocrine disorders such as congenital hypothyroidism, which may be accompanied by abdominal distension, delayed resolution of jaundice, mental retardation, short stature, etc. It is recommended to consult a pediatric endocrinologist. If an infant does not have bowel movements for a long time, the appropriate department should be chosen according to the accompanying symptoms, and the appropriate treatment should be carried out according to the doctor’s instructions.