The duration of tummy saving in infants is about 3-4 days, and the longest period is about 1 week without poop. The phenomenon of diarrhea is mostly seen in babies who are exclusively breastfed, which manifests itself as a period of time with normal stool volume and frequency, 1-2 times a day, followed by a few days or even 1 week without stool. However, the child’s eating has not been reduced, the mental state is good, only the abdomen is full, and after the next bowel movement, there is no great abnormality in the stool condition. It is mainly because of insufficient breastfeeding, especially the baby months gradually become bigger, digestion and absorption ability to enhance, breast milk by the human body after digestion and absorption of the remaining residue is less, may also cause. So in the feeding process to monitor the baby’s weight changes, if a period of time the baby weight does not increase, need to properly adjust the feeding method. In short, babies save stomach is a common phenomenon, there is no need to be too anxious, appropriate adjustment of feeding, will slowly improve. However, if the baby is not feeling well, it is recommended to go to the pediatrician in time.