After adding complementary food to save belly and constipation the main difference is the time of occurrence, the baby’s performance, the nature of the stool. 1. The time of occurrence is different: save belly occurs in the baby 2 to 6 months, is a common phenomenon. Due to rapid growth, high food absorption, less residue, the baby may occur to save the belly. After the addition of complementary foods (after 6 months) and the introduction of solid foods, the baby’s stools may be more frequent again. Constipation, on the other hand, may occur at any age. 2. The baby’s performance is different: during the belly, the baby has no obvious crying, eating, sleeping are normal, no difficulty in defecation, weight gain is also normal. If the baby is constipated, it may be accompanied by difficulty in defecation, crying, sleep instability, irritability, etc.. 3. The different nature of the stool: this is the most obvious difference between the belly and constipation. Save the belly during the baby, although the number of stools to reduce, but the nature of the stool is still thin paste. In the case of constipation, the baby’s stools are drier and harder. When your baby has an abnormal stool pattern, it is recommended that you visit your pediatrician in a timely manner to actively investigate the cause and intervene in a timely manner.