Babies’ stools are usually yellow in color, and the texture may vary due to different feeding methods. They may also appear off-white, black, green or with blood, which usually indicates the occurrence of biliary obstruction, gastrointestinal bleeding, viral enteritis and other diseases. The common situation is as follows: 1, yellow: under normal circumstances breast-fed babies, stools are golden yellow soft paste, slightly green. If formula-fed baby color will be slightly darker, the texture is also relatively dry, but no special treatment. If there are some oily texture of the milk flap, need to be considered as a result of indigestion; 2, gray: if the stool is gray, while the baby’s eyes and skin yellowing, then consider the biliary obstruction, common in congenital biliary atresia; 3, black: often suggests upper gastrointestinal bleeding, including gastric ulcer, esophageal injury, gastritis, gastric mucosal prolapse, etc., may also be due to the treatment of anemia containing iron 4, green: after eating mashed vegetables, or taking iron-containing drugs, formula, can also lead to green stools. In addition, viral enteritis, indigestion and other conditions can also lead to green frothy stools; 5, with blood or fresh blood: may be due to too dry stools, bleeding caused by rubbing the anus during defecation. In addition, it may also be caused by intestinal tumors, intestinal polyps, anal fissures, hemorrhoids and other diseases, and the cause should be clarified for treatment. Parents should observe their children’s stools in daily life. If there is any change in color or shape, they should think about whether the disease has occurred and seek medical attention as soon as possible. And breastfeeding mothers should pay attention to their diet, not to eat too greasy, spicy food, to ensure the quality of breast milk.