There are more clinical manifestations of babies not having enough to eat, which may include crying, earlier intervals between feedings, less frequent urination, and slower weight gain. 1. Crying: If the baby is not full, there may be crying behavior. 2. Breastfeeding interval advancement: If the baby is not full, the time of the next feeding may be advanced, and the baby will show the behavior of foraging for food in advance. 3. Decreased urination: A normal breastfeeding baby urinates at least 6 to 8 times in a day. If the frequency of urination decreases, it may indicate that the baby is not full. 4. Slow weight gain: If the baby is not full for a long time, or half-starvation, it will have a certain impact on the development of the body, so pay attention to the weight changes, weight gain is too slow may be the manifestation of the lack of food. The baby did not eat enough will have obvious performance, parents should pay more attention to avoid the baby because not eat enough, resulting in malnutrition, affecting the growth and development of children.