The color, taste and nature of the feces indicate whether the baby is in good condition. The average time between the entry of food into the digestive tract and the elimination of feces is 13 hours for breastfed babies and 15 hours for artificially fed babies. The characteristics of the bowel movement and the way of feeding also have a certain relationship. 1, breastfed children: generally yellow or golden yellow, mostly uniform paste or with a little yellow stool particles, or thinner, green, not smelly. Average daily defecation 2 to 4 times, generally after the addition of complementary foods that the number of times reduced. 2, artificially fed children: the general stool is light yellow or grayish yellow, dry and thick. Because of the high protein content in milk and formula, the stool will have the odor caused by protein decomposition products, sometimes mixed with milk flaps. Stool 1 to 2 times / day, prone to constipation. 3, mixed feeding children: breastfeeding + artificial feeding infants stool and artificial feeding children similar, but more soft, yellow. 4, the addition of complementary foods on the impact of stool: adding rice flour, baby porridge and other starchy foods can increase the stool, the consistency is slightly reduced, slightly dark brown, the odor increased. When adding various types of pureed vegetables and fruits, the appearance of the stool begins to resemble adult stool, and when adding pureed vegetables, there will be similar to the dried vegetable grains from the stool, which is generally once a day. If the child is constipated, consider increasing the amount of water consumed first, and give a little starchy food such as rice flour and baby porridge when adding complementary foods. If constipation persists, consider the use of corked laxatives and visit the hospital to find out if there is any organic disease.