When a baby does not poop for several days, many parents will begin to struggle, whether the baby is constipated or tummy time? How can we tell the difference? Today we will teach you: how to distinguish between constipation and tummy time. Save belly more in the baby after the full moon about 50% to 60% of the baby will happen to save belly phenomenon, and to exclusively breast-fed babies are more common. Save belly does not appear at birth, this is because the newborn’s biological clock has not yet formed a regular, frequent feeding, defecation is also frequent, usually eat and poop, will not save belly. The baby’s biological clock and rest gradually become regular, and digestive function is also gradually improved, breast milk is absorbed and used more fully, so that the remaining food residues become less, not enough to stimulate rectal defecation, thus the phenomenon of belly accumulation. After the baby starts to save belly, the regularity of bowel movements will change, the number of bowel movements will change from the original 2-5 times a day to once every 2 or 3 days, or even once every 7 days or half a month. However, during this period, the baby’s mental state, eating condition, sleep quality, weight gain, etc. are not abnormal, and the stool form is normal thin paste, no hard knots, and the amount is not particularly large. The duration of the belly accumulation varies from person to person As each baby’s own physical condition and the size of the food intake is not the same, the time of the start of the belly accumulation is also different, some babies will be a few days earlier, some babies may be a few days later. And the duration also varies, some can last a month or two, some will continue until the addition of complementary foods. When complementary foods are added, as the variety of foods your baby eats increases, the intake of dietary fiber and other ingredients will also increase, which can promote gastrointestinal peristalsis, increase the volume of stool and help stool absorb water, making it easier to pass stool, and the frequency will increase and return to normal.