Newborns drinking formula for three or four days without bowel movement, but as long as it does not affect the diet, not nausea and vomiting, it may also be a normal manifestation. Observation and follow-up may be necessary. However, we need to be alert to the possibility of congenital megacolon and other diseases. Normal babies should have 1-4 bowel movements per day. Eat breast milk about 1-3 times, eat formula milk about 2-4 times stool, but if the baby a short period of time without stool, such as two to three days without stool, more observation and follow-up treatment, if necessary, can follow the doctor’s instructions to be cecropia anal treatment. But if the baby has abdominal distension, blast-like bowel movements, need to be alert to congenital megacolon and other diseases may be. Can improve the lower gastrointestinal imaging to assist in the diagnosis. There are also many babies because of poor diet, gastrointestinal function is not yet perfect, parents can give the child every day clockwise rubbing the stomach to promote defecation, but also under the guidance of the doctor with probiotics, such as bacillus subtilis and other regulation of intestinal flora.