Baby’s tummy refers to the increased digestive power during the growth process, which is a normal physiological phenomenon, parents do not need to worry. The performance of baby’s tummy may include no bowel movement for many days, difficulty in defecation, normal eating and sleeping, and so on. 1. Baby does not defecate for many days: in the process of tummy saving, there will be a few days without defecation, but the baby eats milk normally, sleeps normally, and has a good mental state. 2. The baby does not have difficulty in defecating: when the baby defecates during the tummy saving period, there are no painful symptoms such as holding in the red face and not being able to pass stools, and the stools passed are normal in character, soft and not dry. 3. Eating and sleeping are normal: babies eat normally during tummy time, including sleep, which is not affected in any way. If the baby does not poop for more than a week or the bowel movement is unusually painful, it is abnormal, and it is recommended to go to the pediatrics department of the hospital for treatment.