If the newborn does not poop for a day, if the diet and sleep are good, it can be observed first. If there is loss of appetite, crying, abdominal distension and other manifestations, suggesting that there may be constipation, abdominal massage can be given, oral probiotics such as Bacillus licheniformis to regulate intestinal flora, and if necessary, cecrops enema. Some of the newborn 1~2 days stool once, but the mental condition is good, normal milk, growth and development is not affected, stool is also soft stool, this time without special intervention. If the baby’s intake is low on that day, there may also be a day without poop, parents can increase the frequency of breastfeeding appropriately and continue to observe. If the baby has crying, bloating, loss of appetite and other manifestations, usually difficult to defecate, suggesting constipation, parents can clockwise abdominal massage, to 10 ~ 15 minutes appropriate, while oral probiotics to regulate intestinal flora, if necessary, timely consultation, under the guidance of a physician to give Keselen enema. There are many other reasons why newborns do not defecate, such as congenital megacolon, congenital intestinal atresia, etc. It is recommended to consult a doctor in a timely manner in order to clarify the cause of the disease and standardize the treatment.